Comprehensive SWMS for Mobile Tower Scaffold Assembly and Use

Mobile Scaffold Safe Work Method Statement

2,000+ Australian Businesses Trust OneClickSWMS
Generate SWMS NowView Sample PDF

No credit card required • Instant access • 100% compliant in every Australian state

5 sec
Creation Time
100%
Compliant
2,000+
Companies
$3.6K
Fines Avoided

Avoid WHS penalties up to $3.6M—issue compliant SWMS to every crew before work starts.

Mobile scaffold towers provide temporary elevated working platforms combining the advantages of scaffold stability with mobility through castor wheels enabling repositioning between work locations. These modular systems are extensively used for maintenance, installation, and fitout work where access is required at multiple locations throughout a building or site. This SWMS addresses the critical safety requirements for mobile scaffold including assembly procedures following manufacturer instructions, maintaining stability ratios, securing procedures, safe movement protocols, platform loading management, and inspection requirements in compliance with Australian WHS legislation and AS 1576 scaffolding standards.

Start Generating SWMSSee How It Works

Unlimited drafts • Built-in WHS compliance • Works across every Australian state

Overview

What this SWMS covers

Mobile scaffold towers, commonly known as rolling scaffolds or mobile access towers, consist of prefabricated modular frames, platforms, bracing, and castor wheels assembled to create stable elevated working positions that can be repositioned as work progresses. These systems provide significant advantages over fixed scaffolding through rapid assembly and dismantling, mobility allowing efficient repositioning between work locations, and relatively lightweight components that can be manually handled without requiring mechanical lifting equipment. Mobile towers are extensively used in construction fitout, building maintenance, ceiling installation, services installation, painting, and any application requiring elevated access at multiple distributed locations. Mobile scaffold systems comprise several key components that must be correctly assembled and maintained for safe operation. Base frames fitted with lockable castor wheels provide the foundation and mobility, with heavy-duty castors rated for scaffold loads and fitted with positive locking brakes preventing movement during work. Vertical frames or standards connect to base frames and stack vertically to achieve required working heights, with each frame connection using proprietary couplers, pins, or locking mechanisms ensuring structural continuity. Horizontal bracing connects frame corners providing lateral stability and preventing racking, with diagonal braces creating triangulated geometry that resists side forces. Working platforms or decks span between frames creating the elevated working surface, fabricated from timber, aluminium, or composite materials with trap doors or removable sections allowing internal ladder access. Platform guardrails include top rails, mid rails, and toe boards meeting AS 1576 requirements, providing perimeter fall protection around all exposed platform edges. Internal access ladders or stairs provide means to ascend and descend between platform levels, with ladders typically integral to frame design. Outriggers or stabiliser frames attached to the base increase the effective base width, improving stability ratios for taller tower configurations. Assembly procedures follow manufacturer instructions which vary between proprietary systems, but general principles include assembling on firm level surfaces with castors initially unlocked to allow minor positioning adjustment, building from the base upward with frames correctly oriented and locked, installing horizontal bracing at each level as frames are stacked, fitting platforms with secure attachment preventing uplift or displacement, completing guardrail systems around all platform edges before ascending to work, and verifying the completed structure against manufacturer height and configuration limits. Most mobile scaffold manufacturers limit height to 12 metres maximum for indoor use on firm level floors, and lower heights for outdoor use or where ground conditions are variable. Assembly must be completed by workers who have received appropriate training on the specific system being used, as connection methods and component compatibility vary significantly between manufacturers. Stability ratios govern the relationship between tower height and base dimensions, ensuring the structure will not overturn under anticipated loading including worker movement, material handling, and environmental forces such as wind. The fundamental stability principle requires the vertical height from base to highest platform not exceed four times the minimum base dimension (4:1 ratio) for mobile towers without outriggers, or three times the minimum base dimension (3:1 ratio) for mobile towers with outriggers fitted. For example, a mobile tower with 1.4 metre base width can safely reach 5.6 metres platform height (4 × 1.4m) without outriggers, or 4.2 metres (3 × 1.4m) with outriggers. Exceeding these ratios creates top-heavy configurations at risk of tip-over particularly during movement or when side forces are applied during work. Some manufacturers specify more conservative ratios for specific systems or use conditions—always consult and follow manufacturer specifications as the authoritative source. Movement procedures are critical to mobile scaffold safety, as the majority of mobile tower incidents involve tip-over during repositioning. Safe movement requires ensuring all platforms are clear of workers, tools, and materials before any movement commences; reducing tower height if necessary to achieve conservative stability ratios for movement, typically maintaining height-to-base ratio of 2:1 or less; applying force at the base level only, never pushing on upper levels which creates tip-over forces; moving on smooth level surfaces only, avoiding slopes, thresholds, or rough terrain; proceeding at walking pace with controlled deliberate movement; having minimum two workers controlling movement; watching for overhead obstacles, floor openings, and other hazards in the travel path; and immediately locking castors after repositioning before workers re-ascend. Many serious incidents involve workers riding on towers during movement to save time, a practice that is absolutely prohibited and should trigger immediate work stoppage and disciplinary action. Platform loading must remain within manufacturer safe working load limits, typically 225 kg per platform for light-duty systems or 450 kg for heavy-duty configurations. These capacities include the combined weight of workers, tools, and materials on each platform level. Concentrated loading where all weight is accumulated in one platform area creates higher structural stresses than distributed loading, requiring conservative loading practices. Material storage on platforms should be limited to immediate work requirements rather than stockpiling full day's materials creating unnecessary load. Platform capacity reduces with height for some configurations due to increased structural loading on lower frame components. Inspection requirements include pre-assembly component inspection verifying frames, bracing, platforms, and castors are undamaged and complete; post-assembly inspection by competent person confirming correct assembly, stability ratio compliance, secure connections, and guardrail installation before first use; daily inspections when towers remain erected for extended periods; and post-incident inspection after any impacts, near-misses, or unusual events before resuming use. Tags affixed to assembled towers indicate inspection status, with information including inspection date, competent person name, safe working load, and next inspection due date.

Create Custom Mobile Scaffold SWMSDownload Sample SWMSView All Working at Height Documents

Fully editable, audit-ready, and aligned to Australian WHS standards.

Why this SWMS matters

Mobile scaffold tower incidents result in serious injuries and fatalities across Australian construction sites annually, with tip-over during movement representing the most common and catastrophic failure mode. Workers positioned on towers during movement are thrown from significant heights when towers overturn, often suffering severe head injuries, spinal trauma, and multiple fractures. Even workers struck by falling towers can sustain crush injuries fatal or permanently disabling in nature. Safe Work Australia data consistently identifies mobile scaffold incidents as preventable through adherence to assembly procedures, stability requirements, and movement protocols, yet incidents continue due to shortcuts, incomplete assembly, and violations of movement prohibitions. The consequences of mobile scaffold failures extend beyond immediate physical injuries to create lasting impacts on workers, families, and organisations. Workers who survive serious falls from mobile scaffolds frequently face extended rehabilitation periods, permanent disabilities affecting their capacity to work in construction, chronic pain conditions, and psychological trauma including anxiety about height work that may prevent return to their trade. Family members witness the transformation of previously healthy providers into persons requiring ongoing care and support. Organisations face workers compensation costs, productivity losses during investigations and work stoppages, increased insurance premiums, and reputational damage that affects future work opportunities. Regulatory requirements under the Work Health and Safety Act 2011 establish explicit duties for persons conducting businesses or undertakings to ensure scaffolding including mobile towers is properly designed, erected, and maintained in safe condition. WorkSafe authorities across Australian jurisdictions actively inspect mobile scaffold use and enforce compliance with assembly standards, stability requirements, and movement protocols. Prohibition notices immediately stop work where mobile scaffolds are found incorrectly assembled, unstable, or used in violation of safe movement procedures. Financial penalties for mobile scaffold violations can exceed $300,000 for individuals and $3 million for corporations, with criminal prosecution pursuing where serious injuries or fatalities result from inadequate scaffold management. Recent case law demonstrates that courts take mobile scaffold safety seriously, particularly where incidents involve workers riding on towers during movement in clear violation of known safe practices. Documenting mobile scaffold procedures through comprehensive SWMS provides essential evidence of systematic risk management. These documents prove that risks were identified through hazard assessment, control measures were selected following hierarchy of control principles, workers received instruction in correct assembly and use procedures, and supervision ensured compliance with established protocols. During WorkSafe investigations following incidents, SWMS documentation becomes critical evidence of whether due diligence was exercised. Well-documented procedures demonstrate professional safety management, whilst absence of procedures suggests inadequate planning and ad-hoc decision making that increases incident likelihood. Common errors that cause mobile scaffold incidents include incomplete assembly with missing bracing or inadequate frame connections reducing structural integrity, exceeding stability height-to-base ratios creating top-heavy configurations vulnerable to tip-over, moving towers with workers, tools, or materials remaining on platforms, pushing on upper tower sections during movement rather than applying force at base level, moving towers over uneven ground, slopes, or thresholds creating instability, platform overloading beyond safe working load capacity, failure to lock castors during work allowing inadvertent movement, and inadequate inspection allowing damaged or incomplete towers to be used. Each error is preventable through proper training, adherence to procedures, and supervision ensuring compliance, yet they recur across worksites contributing to persistent incident statistics. Competency requirements for mobile scaffold work are often underestimated, with an assumption that anyone can assemble towers without specific training. However, safe mobile scaffold work requires understanding of assembly procedures specific to the equipment system being used, recognition of when manufacturer limitations are being approached or exceeded, knowledge of stability ratios and how to verify compliance, techniques for safe movement, and inspection skills to identify defects and assembly errors. Training programs must address these elements through both theoretical instruction and practical assembly under supervision, with competency assessment confirming workers can correctly assemble, inspect, and move towers before authorising independent work. Organisations without effective training programs rely on variable worker knowledge and informal practices rather than consistent safe procedures. The broader project benefits from comprehensive mobile scaffold management include reduced incident rates protecting worker safety and project continuity, improved productivity as properly assembled stable towers provide secure working platforms, compliance with principal contractor requirements for documented scaffold procedures, reduced insurance costs reflecting strong safety performance, and enhanced organisational reputation demonstrating commitment to scaffold safety. Contractors with systematic mobile scaffold programs including training, inspection procedures, and supervision gain advantages in tendering and contractor prequalification processes where scaffold safety is evaluated.

Reinforce licensing, insurance, and regulator expectations for Mobile Scaffold Safe Work Method Statement crews before they mobilise.

Hazard identification

Surface the critical risks tied to this work scope and communicate them to every worker.

Risk register

Tower Tip-Over During Movement with Workers on Platforms

High

Mobile scaffold tower tip-over during repositioning represents the most catastrophic and frequently fatal mobile scaffold incident type. This occurs when towers are moved with workers remaining on platforms, a practice motivated by saving the time required to descend, move the tower, and re-ascend. The physics of moving a loaded tower are unforgiving—workers positioned at height create a high center of gravity making the structure extremely unstable during movement. Any encounter with floor irregularities including thresholds, changes in surface material, debris, or slopes causes the tower to rock or tip. Obstacles struck during movement including door frames, walls, or equipment initiate tipping. Lateral force applied during turning movements or directional changes creates side loads the narrow base cannot resist. Emergency stops to avoid hazards generate dynamic forces throwing the tower off balance. The castors, designed for smooth controlled movement on level floors, provide no stability against tipping—their mobility actually increases tip-over susceptibility compared to fixed bases. Workers on platforms during tip-over have no time to react and no means to prevent the fall—they are simply thrown from height as the structure collapses beneath them. The falling tower often strikes workers creating additional crush injuries beyond the fall impact trauma. This hazard persists despite being well-known and prohibited because workers and supervisors underestimate the risk during seemingly short repositioning movements, habituate to the practice after multiple incident-free moves, and face time pressure that makes repeated ascending and descending seem inefficient.

Consequence: Fatal or catastrophic injuries to workers thrown from platforms during tower collapse, severe head and spinal trauma from falls combined with being struck by falling structure, multiple simultaneous casualties when several workers are on tower during tip-over, and crush injuries to ground workers in the tower's fall path.

Structural Instability from Incorrect Assembly or Missing Components

High

Mobile scaffold towers incorrectly assembled or missing critical components lack structural integrity and can collapse under normal working loads or during movement. This hazard manifests through various assembly deficiencies: horizontal bracing omitted or incompletely installed leaving structure vulnerable to racking and lateral instability, frame connections not fully engaged or locked creating joints that can separate under load, platforms inadequately secured to frames allowing platform uplift or displacement, guardrails incompletely installed with missing sections creating fall gaps, wrong components forced together from incompatible systems compromising connection strength, and base frames not properly aligned or connected creating weak foundation points. Assembly errors are particularly common when workers are unfamiliar with the specific mobile scaffold system, when manufacturer instructions are unavailable or not consulted, when time pressure drives shortcuts in assembly procedures, and when missing components prompt workers to improvise substitutes rather than obtaining correct parts. Visual inspection of assembled towers does not always reveal inadequately engaged internal connections or components fitted incorrectly. The structure may appear complete and stable initially but fail catastrophically when loaded or subjected to forces during work or movement. Incomplete bracing allows the tower to rack laterally, progressively increasing until structural failure occurs. Platform displacement creates fall hazards and sudden support loss.

Consequence: Progressive or sudden structural collapse causing workers to fall from height, multiple workers falling simultaneously if collapse occurs with several personnel on structure, severe impact injuries from falling with collapsing structure, and crushing injuries from falling frames and components.

Exceeding Height-to-Base Stability Ratios Creating Top-Heavy Configuration

High

Building mobile scaffold towers that exceed manufacturer-specified height-to-base stability ratios creates top-heavy configurations at risk of tip-over even when stationary, with dramatically increased risk during any movement. The fundamental stability requirement limits tower height to four times the minimum base dimension (4:1 ratio) for towers without outriggers or three times base dimension (3:1) with outriggers. Violations occur when towers are progressively built higher without verifying stability compliance, when workers do not understand how to calculate or verify stability ratios, when outriggers that were planned are not actually fitted, when base dimensions are measured incorrectly or optimistically, and when manufacturer height limits are exceeded regardless of calculated ratios. The temptation to exceed ratios stems from needing just a bit more height to complete work without increasing base footprint which may not fit in confined spaces. The hazard is insidious because towers exceeding stability ratios may stand successfully when undisturbed on level floors, creating false confidence that the configuration is adequate. However, any lateral force from worker movement, material handling, wind exposure, or attempted tower movement can initiate tip-over that accelerates rapidly once started. Mathematical precision is required—a tower with 1.4m base width must not exceed 5.6m platform height without outriggers. Even a single frame level higher at 6.3m violates the ratio and creates instability.

Consequence: Tower tip-over causing falls from maximum height as structure collapses, severe injuries or fatalities from falling combined with structural impact, catastrophic failures without warning when stability limits are exceeded, and tip-over during movement of unstable towers even with platforms clear.

Movement Over Uneven Surfaces, Slopes, or Obstacles

High

Moving mobile scaffold towers over uneven floor surfaces, slopes, thresholds, or across obstacles creates instability where towers tip or overturn even when platforms are clear of workers. Construction sites present challenging movement surfaces including transitions between different floor materials creating edges and steps, temporary flooring over rough substrates, slopes from drainage grades or ramps, debris and materials scattered across travel paths, floor penetrations or openings inadequately covered or barricaded, and exterior surfaces affected by weather including mud, ice, or pooled water. Castors negotiate these irregularities poorly—encountering a threshold or step causes the leading castors to climb whilst rear castors remain lower, tilting the entire structure. Slopes create lateral components of gravitational force that combine with the tower's high center of gravity to initiate sideways tip-over. Wheels catching on debris or in floor gaps cause sudden stops that generate dynamic forces overcoming stability. One or more castors losing contact with ground due to surface irregularities reduces the effective base footprint compromising stability. Workers pushing towers may not detect surface hazards until the tower reacts by rocking or tipping, by which point control is lost. The practice of moving towers rapidly or with inadequate personnel monitoring the travel path increases likelihood of encountering hazards without time to respond.

Consequence: Tower tip-over from surface irregularities causing structure collapse and equipment damage, tip-over onto workers or members of public creating struck-by injuries, catastrophic collapse if instability encountered on slopes or near floor edges, and loss of control during movement creating panic responses that worsen instability.

Platform Overloading Beyond Safe Working Load Capacity

Medium

Exceeding mobile scaffold platform safe working load limits through excessive workers, accumulated materials, or concentrated loading creates structural overload that can cause platform failure, frame overloading, and increased instability. Mobile scaffold platforms typically have relatively modest load capacities—commonly 225 kg for light-duty systems or 450 kg for heavy-duty—that are easily exceeded when multiple workers, tool boxes, material supplies, and work equipment are loaded simultaneously. Workers often misunderstand that safe working load is the total for all items on the platform combined, not a per-person allowance. Static loads from stored materials combine with dynamic loads from worker movement and material handling to create peak loads significantly exceeding static weight calculations. Material accumulation is particularly common when towers are left erected for extended periods, with workers progressively adding materials across multiple days until platforms are severely overloaded. Concentrated loading where all weight accumulates in one platform area creates higher localised structural stresses than distributed loading across the platform surface. Overloading effects compound with height as the weight on upper platforms adds to structural loading on lower frames and connections.

Consequence: Platform structural failure causing sudden collapse and falls from height, frame overloading leading to connection failures or frame deformation, increased tower instability from excessive weight high in the structure, and progressive damage to frame components that may not be immediately visible but compromises subsequent load capacity.

Unlocked Castors Allowing Inadvertent Tower Movement During Work

Medium

Failure to lock castor brakes before workers ascend platforms creates conditions where towers can move inadvertently during work, causing instability, falls, and potential collision with structures or other workers. This occurs when workers forget to lock castors after repositioning towers, when castor locks are damaged or ineffective but not replaced, when locks are partially applied providing false security but releasing under load, and when multiple workers are involved with assumption someone else locked the castors. The hazard manifests when workers on platforms generate lateral forces through work activities including reaching, applying force to tools, or transferring materials. These forces can overcome the castors' rolling resistance particularly on smooth floors, causing the tower to drift or roll away from the work position. Workers may lean against structures assuming the tower is stable, only to have it roll away creating sudden support loss and potential falls. Towers positioned on slopes even slight gradients will roll if castors are not locked. Accidental contact from mobile plant, materials handling equipment, or other workers can move unlocked towers creating both collision damage and instability for workers on platforms. The problem is particularly acute when towers are left erected overnight or between shifts—castors may have been locked initially but became unlocked through vibration, accidental contact, or tampering.

Consequence: Tower movement causing workers to fall from platforms as structure rolls away from support, collision with building elements or other workers as tower moves unexpectedly, workers struck or trapped between moving tower and fixed structures, and tip-over if inadvertent movement encounters slopes or obstacles.

Control measures

Deploy layered controls aligned to the hierarchy of hazard management.

Implementation guide

Strict Prohibition Against Workers on Platforms During Tower Movement

Administrative

Absolute prohibition against workers riding on mobile scaffold platforms during any movement eliminates the most catastrophic mobile scaffold hazard. This administrative control establishes unambiguous policy that all platforms must be completely clear of workers, tools, and materials before any tower repositioning commences. Workers must descend to ground level before movement, with visual verification by multiple workers that platforms are clear. After repositioning, castors must be locked before workers re-ascend. No exceptions are permitted regardless of short movement distances or perceived convenience. The prohibition must be actively enforced through supervision, observation programs, and immediate intervention when violations are observed. Disciplinary procedures address violations demonstrating organisational commitment. Signage on mobile towers reinforces the prohibition. Work planning accounts for time required for descent, movement, and re-ascent, preventing time pressure from driving violations. Understanding that workers naturally resist inefficient repeated climbing for small adjustments requires providing adequately sized platforms and careful initial positioning reducing repositioning frequency.

Implementation

1. Establish unambiguous policy documented in site safety rules explicitly prohibiting workers on platforms during any tower movement, with policy communicated during induction and toolbox meetings. 2. Post permanent signage on all mobile scaffold towers clearly stating prohibition and consequences of violation, positioned where workers see warnings before ascending. 3. Require minimum two workers for all mobile tower repositioning, with one worker dedicated to verifying platforms are clear before movement commences. 4. Implement supervision and behavioural observation programs specifically monitoring mobile scaffold movement, with immediate intervention when violations are observed or attempted. 5. Develop disciplinary procedures for workers or supervisors permitting or participating in platform riding, including removal from scaffold work for repeated offenses. 6. Design work sequences to minimise repositioning frequency through careful initial positioning and adequate platform dimensions, reducing temptation to move with workers aboard. 7. Investigate near-misses where workers considered riding on towers, identifying systemic factors including time pressure or inadequate equipment that may be driving unsafe practices.

Competent Assembly Following Manufacturer Instructions and Component Verification

Engineering

Ensuring mobile scaffold towers are assembled correctly following manufacturer procedures prevents structural failures from incorrect assembly, missing components, or incompatible parts. This engineering control requires obtaining and consulting manufacturer assembly instructions for the specific scaffold system being used, verifying all required components are present and serviceable before assembly commences, following specified assembly sequences with frames correctly oriented and connected, installing all horizontal and diagonal bracing at specified levels as structures are built, securing platforms with positive attachments preventing uplift or displacement, completing guardrail systems around all platform edges before any access for work, and verifying the completed assembly against manufacturer configuration drawings and height limitations. Assembly must be conducted by workers who have received training on the specific scaffold system, as connection methods vary between manufacturers. Competent person inspection after assembly confirms correctness before first use.

Implementation

1. Maintain manufacturer assembly instructions for all mobile scaffold systems in inventory, with instructions available at assembly locations in weather-protected storage. 2. Develop assembly checklists specific to each scaffold system used, documenting critical assembly requirements and component verification procedures. 3. Train workers who will assemble mobile scaffolds on correct procedures for the specific systems they will use, including hands-on assembly under supervision. 4. Require pre-assembly component check verifying all frames, bracing, platforms, guardrails, and castors are present, undamaged, and compatible before assembly commences. 5. Implement competent person post-assembly inspection before first use, with documented verification of correct assembly, stability ratio compliance, secure connections, and complete guardrails. 6. Mark components by manufacturer and model ensuring only compatible components from same system are assembled together, preventing mixing of incompatible parts. 7. Conduct periodic assembly audits where safety personnel observe mobile scaffold assembly verifying procedures are followed and identifying any recurring assembly errors requiring additional training.

Stability Ratio Calculation and Verification for All Tower Configurations

Engineering

Systematic calculation and verification of height-to-base stability ratios ensures mobile scaffold towers are not built in top-heavy configurations at risk of tip-over. This engineering control requires measuring base dimensions at the shortest width, measuring or calculating total height from base to highest platform, calculating stability ratio by dividing height by base width, verifying ratio does not exceed 4:1 for towers without outriggers or 3:1 for towers with outriggers, applying more conservative ratios if specified by manufacturer for specific configurations, and reducing height or increasing base width through outriggers if ratios are exceeded. Calculation must occur during assembly planning before tower construction begins, with verification documented. For common tower configurations, pre-calculated ratio tables showing maximum permissible heights for standard base widths simplify field verification. Visual inspection and measurement of completed towers confirms actual configuration matches planned dimensions.

Implementation

1. Develop stability ratio calculation procedures with worked examples showing how to measure base width, determine height, calculate ratio, and verify compliance with limits. 2. Create reference tables showing maximum permissible platform heights for standard base widths commonly used, allowing quick field verification without detailed calculation. 3. Train scaffold assemblers on stability ratio principles, calculation methods, and importance of compliance with ratio limits for tower stability. 4. Require documented stability verification before towers exceeding 4 metres height are used, with calculation showing base dimensions, height, and ratio compliance. 5. Mark assembled towers with height and base dimension information allowing supervisors to verify stability at a glance without re-measurement. 6. Implement hold point procedures requiring supervisor approval before towers are built to heights approaching stability ratio limits or manufacturer maximum heights. 7. Provide outrigger frames in adequate quantities allowing base width increase when required heights approach stability ratio limits with standard base configurations.

Safe Movement Procedures and Surface Assessment

Administrative

Establishing comprehensive procedures for mobile scaffold movement prevents tip-over incidents during repositioning. Controls include ensuring all platforms are completely clear of workers, tools, and materials before movement, reducing tower height if necessary to achieve conservative stability ratios for movement (typically 2:1 maximum), assessing travel path for surface condition identifying slopes, thresholds, obstacles, and overhead clearances before commencing movement, applying pushing force at base level only never on upper frames or platforms, proceeding at walking pace with controlled deliberate movement, having minimum two workers controlling movement with one pushing and one guiding while watching for hazards, moving only on firm smooth level surfaces avoiding slopes or rough terrain, watching for overhead obstacles including lights, ducts, and doorways throughout movement, and immediately locking castors upon reaching final position before any worker ascends. Travel path preparation may require removing obstacles, covering floor penetrations, and barricading areas during movement.

Implementation

1. Develop documented movement procedures specific to mobile scaffolds, establishing step-by-step requirements for safe repositioning. 2. Train all workers using mobile scaffolds on movement procedures, emphasising platform clearing requirement, base-level force application, and surface assessment. 3. Require pre-movement briefing between workers involved in movement, confirming platforms are clear, travel path is assessed, and roles are assigned. 4. Implement two-person minimum for all mobile tower repositioning with defined roles—pusher applies force at base while spotter watches for hazards and confirms platform clearance. 5. Provide path marking or guidance where towers will be moved along defined routes, allowing pre-assessment and preparation of travel surfaces. 6. Establish reduced height requirements for movement operations, limiting moving height to maximum 2:1 stability ratio or lower if specified by manufacturer. 7. Conduct supervision and monitoring during mobile scaffold movement operations, with immediate intervention if unsafe movement practices are observed including excessive speed, inappropriate force application, or hazardous travel paths.

Platform Load Management and Safe Working Load Compliance

Administrative

Preventing platform overloading requires administrative controls ensuring loads remain within manufacturer safe working load limits and are distributed appropriately. This includes posting Safe Working Load placards on all platforms clearly visible to workers loading materials, training workers that SWL is total combined weight of all workers and materials on each platform, calculating anticipated loads before loading platforms with heavy materials or equipment, distributing loads across platform surfaces avoiding concentrated loading at edges or in corners, limiting material storage to immediate work requirements rather than stockpiling full day's supplies, removing excess materials when work tasks change or materials are no longer needed, and implementing supervision monitoring platform loading and intervening when overloading is observed or reported. Regular platform load audits during extended tower use identify material accumulation requiring removal. Understanding typical worker and tool weights enables practical load estimation without precise measurement.

Implementation

1. Post Safe Working Load capacity placards on all mobile scaffold platforms with information including maximum total load and maximum number of persons based on standard weights. 2. Train workers on load capacity concepts including that SWL is total combined load, typical weights of workers and common materials, and consequences of overloading. 3. Develop platform loading procedures specifying material management practices including limiting stored materials to immediate needs and removing materials when no longer required. 4. Provide material hoisting lines or block and tackle equipment allowing materials to be lifted to platforms as needed rather than stockpiling large quantities on platforms continuously. 5. Implement supervision monitoring of platform loading during material-intensive operations, with intervention when platform accumulation approaches or exceeds capacity. 6. Conduct platform load audits for towers remaining erected for extended periods, requiring removal of accumulated materials and non-essential equipment reducing unnecessary loading. 7. Establish procedures for work requiring unusual loads including heavy equipment or concentrated materials, with engineering assessment or manufacturer consultation before exceeding standard loading parameters.

Comprehensive Inspection Regime and Defect Management

Administrative

Systematic inspection at multiple stages ensures mobile scaffold towers are correctly assembled, maintained in safe condition, and free from damage throughout their use. This includes pre-assembly component inspection verifying frames, bracing, platforms, and castors are undamaged and complete; post-assembly inspection by competent person confirming correct assembly, stability ratio compliance, secure connections, complete bracing, and guardrail installation before first use; daily inspections when towers remain erected for extended periods checking for damage, material accumulation, and any modifications or alterations; post-movement inspection verifying structure remains correctly assembled and stable after repositioning; and post-incident inspection after any impacts, near-misses, or unusual events. Inspection results must be documented on tags affixed to assembled towers. Any defects identified require immediate rectification before use or tower quarantine if repairs cannot be completed immediately.

Implementation

1. Develop inspection checklists specific to mobile scaffold systems used, covering pre-assembly component checks, post-assembly verification, and daily inspection requirements. 2. Train workers conducting inspections on defect recognition, assembly verification, stability assessment, and documentation requirements for each inspection type. 3. Require competent person post-assembly inspection before any mobile scaffold tower is used, with documented results confirming assembly correctness and compliance with stability requirements. 4. Implement scaffold tagging system with inspection tags affixed to completed towers showing inspection date, competent person name, safe working load, stability ratio compliance, and next inspection due date. 5. Establish daily inspection requirements for towers remaining erected more than 24 hours, with focus on damage from use, material accumulation, and structural integrity. 6. Provide defect reporting and rectification procedures requiring immediate quarantine of defective or incorrectly assembled towers until repairs or corrections are completed. 7. Maintain inspection records documenting all inspections conducted, defects found, corrective actions taken, and verification of repairs, creating audit trail of scaffold management compliance.

Download complete control procedures

Personal protective equipment

Hard Hat with Chin Strap

Requirement: Type 1 helmet compliant with AS/NZS 1801 with secure chin strap

When: Mandatory during all mobile scaffold assembly, dismantling, and work from platforms to protect against head injuries from falling components and overhead hazards. Chin strap prevents dislodgement during climbing and working in elevated positions.

Safety Boots with Ankle Support

Requirement: Steel toe cap boots certified to AS/NZS 2210.3 with ankle support and slip-resistant soles

When: Required during all mobile scaffold operations for foot protection from dropped components during assembly and secure footing on platforms. Ankle support provides stability during platform work and assembly operations.

High-Visibility Clothing

Requirement: Class D Day/Night vest or coveralls compliant with AS/NZS 4602.1

When: Required during mobile scaffold use to ensure visibility to mobile plant operators, other trades, and site personnel particularly during tower movement operations when multiple workers are involved.

Work Gloves with Grip

Requirement: General purpose work gloves providing hand protection while maintaining dexterity for handling components

When: Required during mobile scaffold assembly and dismantling to protect hands from sharp edges, pinch points, and splinters on frames and components. Must allow adequate grip and dexterity for operating locking mechanisms and handling frames.

Full-Body Safety Harness

Requirement: Class D fall arrest harness compliant with AS/NZS 1891.1 if guardrails are incomplete during assembly

When: Required during assembly or dismantling phases when working at height before guardrail installation is complete. Must be worn with shock-absorbing lanyard connected to suitable anchor point. Not required for work from completed platforms with compliant guardrails.

Safety Glasses

Requirement: Impact-rated to AS/NZS 1337.1 for eye protection

When: Required during assembly, dismantling, and work operations where dust, particles, or debris may be present. Protects against debris particularly during overhead work or cutting and grinding operations.

Inspections & checks

Before work starts

  • ✓Inspect all frame components for damage including bent or cracked tubes, damaged connection points, and corrosion affecting structural integrity
  • ✓Check horizontal and diagonal bracing components are present, undamaged, and compatible with frame system being assembled
  • ✓Verify platforms are undamaged with secure attachment brackets, adequate thickness without deterioration, and posted Safe Working Load placards
  • ✓Examine castors for damaged wheels, functional bearings allowing smooth rolling, positive locking brakes, and secure attachment to base frames
  • ✓Confirm guardrail components including top rails, mid rails, and toe boards are present and undamaged for complete perimeter protection
  • ✓Assess ground surface where tower will be assembled for firmness, levelness, slope angle, and absence of obstacles or hazards
  • ✓Verify manufacturer assembly instructions are available and workers are familiar with the specific scaffold system being used
  • ✓Calculate stability ratio for planned tower configuration confirming height-to-base ratio will not exceed limits

During work

  • ✓Monitor platform loading ensuring combined weight of workers and materials does not exceed Safe Working Load capacity posted on platforms
  • ✓Verify castor locks remain engaged throughout work period preventing any inadvertent tower movement
  • ✓Observe tower stability for any settling, leaning, or movement indicating structural problems or ground failure developing
  • ✓Check guardrails remain in place and intact throughout work, not removed for material handling convenience or other reasons
  • ✓Ensure workers maintain body position within guardrail protection without overreaching or leaning over platform edges
  • ✓Watch for changing environmental conditions including wind or nearby mobile plant operations that could affect tower stability
  • ✓Verify access ladder or stairs remain secure and properly positioned for safe ascending and descending throughout work period

After work

  • ✓Inspect tower structure after use or movement for any damage including frame deformation, connection loosening, or component displacement
  • ✓Verify all platforms remain securely attached to frames with no uplift, warping, or displacement from original positions
  • ✓Check castor wheels and brakes for damage from movement operations and verify brakes continue to lock effectively
  • ✓Remove all tools, materials, and debris from platforms before any dismantling or extended non-use period
  • ✓Document any defects, damage, or assembly issues discovered during use in maintenance logs and tag damaged equipment out of service
  • ✓If tower will remain erected, verify it is positioned in safe location away from traffic routes with castors locked and inspection tag current

Step-by-step work procedure

Give supervisors and crews a clear, auditable sequence for the task.

Field ready
1

Assess Work Requirements and Verify Mobile Scaffold Suitability

Before mobilising mobile scaffold equipment, systematically assess the work requirements and site conditions to determine if mobile towers are the appropriate access method. Consider required working height and platform size, work duration and frequency of repositioning between locations, load capacity requirements for workers and materials, ground surface conditions throughout the work area, overhead clearances for assembled tower height and movement, proximity to floor edges, excavations, or other hazards, and access requirements for tower assembly and positioning. Verify mobile scaffold provides advantages over fixed scaffolding through reduced assembly time and repositioning capability. Calculate required tower configuration including height, base dimensions, and stability ratio to confirm work can be accomplished within manufacturer limits. Assess whether floor surfaces are suitable for castor movement—firm, smooth, level floors are required. Identify any ground preparation needed. Document access method selection decision including why mobile scaffold is appropriate for this application.

Safety considerations

Mobile scaffolds are only suitable for use on firm, smooth, level surfaces. Rough ground, slopes, or variable surfaces require fixed scaffold with adjustable base jacks. Work requiring very stable platforms for precision tasks may be better suited to fixed scaffolding. Frequent movement over long distances may indicate elevated work platforms would be more efficient than repeatedly moving towers. Ensure tower height, platform size, and load capacity match actual work requirements without exceeding equipment limitations.

2

Inspect Components and Prepare Assembly Area

Before assembly commences, conduct thorough inspection of all mobile scaffold components verifying they are present, undamaged, and compatible. Lay out components in organised groups near assembly location facilitating assembly workflow. Inspect frame components checking for straight tubes without bends or cracks, undamaged connection points and locking mechanisms, and absence of corrosion or deterioration. Check horizontal and diagonal bracing for straightness and secure end fittings. Examine platforms for cracks, deterioration if timber, secure mounting brackets, and posted Safe Working Load placards. Test castor wheels for rotation, bearing function, brake operation, and secure attachment to base frames. Verify guardrail components are complete with top rails, mid rails, toe boards, and secure mounting hardware. Ensure manufacturer assembly instructions are available. Prepare assembly area by clearing the ground surface of debris and obstacles, verifying surface is firm and level, and establishing adequate space for assembly and tower positioning. Mark the intended tower footprint on floor allowing verification of base dimensions during assembly.

Safety considerations

Pre-assembly component inspection is critical for detecting damage that could cause structural failures during use. Never substitute damaged components or mix incompatible parts from different manufacturer systems. Components appearing serviceable under casual observation may have cracks or damage creating failure risks under load. If any components are damaged, missing, or questionable, obtain replacements before assembly rather than proceeding with defective equipment.

3

Assemble Base Level and Verify Castor Function

Begin mobile scaffold assembly with base frames fitted with castor wheels. Position base frames in the marked footprint area ensuring correct orientation and spacing according to manufacturer specifications. Connect base frames using specified connection methods which vary by manufacturer system—may include couplers, pins, or integrated locking mechanisms. Verify all base connections are fully engaged and locked. Measure base dimensions in both directions confirming they match planned dimensions. Initially leave castors unlocked allowing minor positional adjustment during base assembly. Test each castor by rolling and locking to verify wheels rotate freely, brakes lock effectively, and castors remain securely attached to base frames. Apply locking brakes on all castors once base positioning is finalised. Use spirit level to verify base is level in both directions—if significant out-of-level exists, consider whether floor surface is suitable for mobile scaffold use or requires preparation. Install first level of horizontal bracing connecting base frame corners per manufacturer assembly sequence.

Safety considerations

Base frame assembly sets the foundation for entire tower structure. Incorrect base connection, misaligned frames, or inadequate base dimensions create instability affecting the complete assembly. Verify base dimensions carefully as these determine maximum permissible height through stability ratios. All castor brakes must lock effectively preventing any rolling—damaged or ineffective brakes require castor replacement before proceeding with assembly.

4

Build Tower Vertically Installing Frames, Bracing, and Platforms

With base complete and level, build tower vertically adding frame sections, bracing, and platforms as height increases. Install next frame level ensuring frames are correctly oriented with connection points aligned. Connect frames using specified locking mechanisms, pins, or couplers following manufacturer assembly sequence. Verify each connection is fully engaged and locked before proceeding higher—incomplete connections create serious structural weaknesses. Install horizontal bracing at each level as frames are added, connecting frame corners to create rigid structure resisting racking. Install diagonal bracing per manufacturer requirements to triangulate structure. Fit platforms at working height levels ensuring platforms are correctly positioned and secured to frames with positive attachments preventing uplift or sliding. As height increases, periodically verify tower remains vertical and stable without lean or rack. Stop building when planned working height is reached or when stability ratio limits are approached. Do not exceed manufacturer maximum height specifications regardless of calculated stability ratios.

Safety considerations

Progressive assembly from base upward maintains structural integrity during construction. Never climb partially assembled towers or work from levels without complete bracing and guardrails. Each frame connection must be fully engaged and locked—rushed assembly creates incomplete connections that appear satisfactory but fail under load. Bracing at every level is critical—never omit bracing to save time or because components are missing. Stop building if stability ratio limits are reached even if additional height is needed—increase base width with outriggers or use taller fixed scaffold instead.

5

Install Guardrail Systems and Conduct Post-Assembly Inspection

After tower structure is complete to working height, install complete guardrail systems around all platform perimeters before any access for work is permitted. Guardrails must include top rail at minimum 1000mm height, mid rail positioned to prevent gaps exceeding 500mm, and toe boards minimum 150mm height preventing tools or materials falling from platform edges. Ensure guardrail sections are securely connected to platform supports and cannot be displaced. Install access gates where ladder entry occurs, with gates opening inward and latching securely when closed. After guardrail installation is complete, conduct comprehensive post-assembly inspection verifying all frame connections are engaged and locked, all required bracing is installed and secure, platforms are correctly positioned and attached, guardrail systems are complete around all exposed edges, castor brakes are locked, tower is vertical without lean or rack, height-to-base stability ratio is within limits, and overall structure is stable and rigid. Document inspection results on tower inspection tag. Measure and record base dimensions and tower height for stability verification. Have competent person who did not participate in assembly verify the completed tower before first use.

Safety considerations

Guardrails must be complete before workers ascend to platforms—working from platforms without guardrails exposes workers to unprotected fall risks. Post-assembly inspection by competent person catches assembly errors before tower is loaded. Independent inspection by someone who did not participate in assembly provides fresh perspective more likely to identify mistakes. Never permit work from tower that has not been inspected and tagged by competent person confirming assembly correctness and safety for use.

6

Work from Platform Maintaining Load Management and Stability Awareness

Once tower is inspected and approved for use, workers may ascend using internal access ladder maintaining three points of contact. Verify castor locks are engaged before ascending. Position work to avoid overreaching or generating significant lateral forces. Maintain awareness of Safe Working Load limits posted on platforms, calculating combined weight of workers and materials. Distribute loads across platform surfaces avoiding concentrated loading at edges. Limit material storage to immediate work requirements. Position tools and materials to prevent falling from platform edges. Keep work activities within guardrail protection. Monitor tower stability throughout work observing for any unusual movement, sounds, or vibration indicating problems developing. Verify castors remain locked periodically. If any instability is observed or felt, stop work immediately, evacuate platform, and investigate before resuming. Maintain communication with ground personnel about work activities and any concerns. Do not modify tower structure, remove bracing, or alter configuration during use without complete disassembly and proper re-assembly.

Safety considerations

Platform Safe Working Load limits are easily exceeded through accumulation of workers and materials. Conservative loading practices provide safety margin against miscalculation. Any perception of instability or unusual tower behaviour must trigger immediate work stoppage and investigation—structural problems often provide subtle warnings before catastrophic failures occur. Never modify assembled towers by removing components or altering configuration during use as this compromises structural integrity and stability verification.

7

Move Tower Safely Following Platform Clearing and Path Assessment

When tower repositioning is required, implement comprehensive movement procedures ensuring safety throughout the operation. Begin by ensuring all workers descend from all platform levels to ground—verify visually that all platforms are completely clear of personnel. Remove all tools, materials, and equipment from platforms leaving them completely empty and unloaded. If tower height exceeds twice the base width, reduce height by removing upper frames until conservative stability ratio for movement (2:1 maximum) is achieved. Assess the complete travel path from current position to intended final position, identifying surface conditions, slopes, thresholds, obstacles on floor, and overhead clearances. Clear obstacles from path or select alternative route avoiding hazards. Assign minimum two workers for movement operation—one will push while the other guides and watches for hazards. Unlock castor brakes on all wheels. Position workers at base level ready to apply pushing force horizontally at base frame positions—never push on upper tower levels. Proceed with controlled deliberate movement at walking pace, maintaining straight-line travel where possible to avoid directional changes creating lateral forces. Monitor overhead clearances continuously during movement. The guiding worker must watch the complete tower and travel path alerting the pusher to stop if any hazards are encountered. Upon reaching final position, immediately lock all castor brakes before any worker ascends.

Safety considerations

Platform riding during movement is absolutely prohibited regardless of distance or perceived convenience. Verify platforms are completely clear through multi-person visual confirmation before any movement commences. Pushing on upper tower levels creates lateral forces causing tip-over. Movement over slopes, rough surfaces, or through doorways creates instability risking tip-over even with platforms clear. Reduce height to conservative ratios for movement—taller configurations that are stable when stationary become unstable during movement. Lock castors immediately after repositioning before any workers ascend.

Get risk assessment & procedures

Frequently asked questions

What is the maximum height I can build a mobile scaffold tower?

Maximum mobile scaffold tower height is determined by two limiting factors that must both be satisfied—stability ratio limits and manufacturer absolute height limits, whichever is more restrictive. The stability ratio requirement limits tower height to four times the minimum base dimension (4:1 ratio) for towers without outriggers, or three times the minimum base dimension (3:1 ratio) for towers with outriggers fitted. For example, a tower with 1.4 metre base width can reach maximum 5.6 metres platform height (4 × 1.4m) without outriggers, or 4.2 metres (3 × 1.4m) with outriggers. This ratio ensures the structure is not top-heavy and at risk of tip-over. To increase permissible height, increase base width through using wider base frames or fitting outrigger stabiliser frames. Beyond stability ratios, most mobile scaffold manufacturers specify absolute maximum heights for their systems regardless of calculated ratios—commonly 12 metres maximum platform height for indoor use on firm level floors, with lower limits for outdoor use or variable ground conditions. Some manufacturers specify more conservative ratios or heights for specific configurations or use scenarios. Always consult manufacturer documentation as the authoritative source for height limits on specific equipment systems. Environmental factors may require further height reduction—outdoor exposure to wind may limit practical working height below structural limits, and movement operations typically require height reduction to 2:1 ratio maximum for stability during travel. If required working height exceeds mobile scaffold limits even with maximum base width and outriggers, mobile scaffolds are not the appropriate access method and fixed scaffolding providing greater height capacity should be used instead. Never exceed manufacturer height limits or stability ratios to gain additional reach—the limits exist because stability and structural integrity are compromised beyond these points creating serious tip-over and collapse risks.

How do I calculate if my mobile scaffold tower is stable enough for the height I need?

Calculating mobile scaffold stability requires systematic measurement and ratio verification to ensure the tower configuration will not be top-heavy and at risk of tip-over. Follow this step-by-step calculation process: First, measure the base dimensions of your assembled tower in both directions—length and width—measuring between the outer edges of the base frames at castor level. The minimum of these two dimensions is your limiting base dimension for stability calculation. For example, if your base measures 1.8 metres in one direction and 1.4 metres in the other, your minimum base dimension is 1.4 metres. Second, determine the total vertical height from the base to the highest platform working surface—this is the height value for ratio calculation, not the total height including guardrails. Third, divide the platform height by the minimum base dimension to calculate the height-to-base ratio. Using our example, if platform height is 4.8 metres and base width is 1.4 metres, the ratio is 4.8 ÷ 1.4 = 3.43:1. Fourth, compare your calculated ratio against the maximum permissible ratio—4:1 for towers without outriggers or 3:1 for towers with outriggers. In our example, the 3.43:1 ratio exceeds the 3:1 limit for a tower with outriggers but complies with the 4:1 limit without outriggers, so outriggers must not be fitted or height must be reduced. If your calculated ratio exceeds limits, you have three options: reduce tower height by removing frame levels until ratio is within limits; increase base width by fitting outrigger stabiliser frames if available for your system and not already fitted; or determine that mobile scaffold is not suitable and fixed scaffolding with larger footprint is required. Always apply conservative judgment—ratios approaching limits leave minimal safety margin, so consider using ratios well within limits (such as 3:1 even without outriggers) for added stability. Remember that manufacturer specifications may impose more restrictive ratios or absolute height limits beyond the general 4:1 and 3:1 guidelines, so consult specific equipment documentation. For movement operations, further reduce height to achieve 2:1 ratio maximum as dynamic forces during movement require greater stability margin. Documenting your stability calculation provides evidence of systematic verification and demonstrates compliance with WHS requirements.

What should I do if I need to move the mobile scaffold to a different location?

Safe mobile scaffold movement requires strict adherence to procedures that prevent tip-over during repositioning. Begin by ensuring absolutely all workers descend from every platform level to ground—visually confirm platforms are completely empty of personnel. Remove all tools, materials, equipment, and any other items from every platform level leaving them completely unloaded. Assess whether tower height provides adequate stability for movement—if height-to-base ratio exceeds 2:1, reduce height by dismantling upper frame sections until conservative ratio is achieved. Before releasing castor brakes, assess the complete travel path from current position to intended final location. Identify surface conditions including any slopes, transitions between floor materials, thresholds or steps, debris or obstacles on the floor, and overhead clearances including lights, ducts, doorways, and building elements. Address hazards by clearing obstacles from path, selecting alternative routes avoiding problematic areas, or determining that safe movement is not possible requiring tower disassembly and reassembly at new location. Assign minimum two workers for movement operation with clearly defined roles—one worker will push whilst the other guides and watches for hazards. Both workers position themselves at base level on opposite sides of the tower. Unlock all castor brakes allowing the tower to roll freely. Apply pushing force horizontally at base frame level never pushing on platforms, mid-level frames, or any elevated components. Move at controlled walking pace proceeding smoothly without jerky movements or sudden stops. Maintain straight-line travel where possible as turning creates lateral forces increasing tip-over risk. The guiding worker continuously watches the entire tower and travel path, alerting the pusher to stop immediately if any hazards are encountered or instability is observed. Monitor overhead clearances throughout movement preventing tower contact with ceiling elements. Upon reaching the intended final position, immediately lock all castor brakes before any other action. Verify tower remains correctly assembled and guardrails are intact before permitting any workers to ascend. If movement distance is substantial or path conditions are problematic, consider whether partial or complete disassembly with reassembly at the new location would be safer than attempting to move the assembled tower. Never attempt to move towers with workers on platforms regardless of distance, never push on upper levels, never move rapidly or allow uncontrolled rolling, and never move over slopes, rough surfaces, or through confined spaces where adequate clearance is uncertain. The time saved by moving assembled towers compared to disassembly is not worth the severe injury risks if tip-over occurs during movement.

Do I need special training to assemble and use mobile scaffolds?

Yes, workers who assemble, alter, or dismantle mobile scaffold towers must receive appropriate training on the specific scaffold systems they will use, though formal High Risk Work licensing is not generally required for mobile scaffold work in most Australian jurisdictions (unlike fixed scaffolding work which requires scaffolding HRW licences for basic and advanced configurations). The training requirement exists because mobile scaffold safety depends critically on correct assembly following manufacturer procedures, understanding of stability ratios and how to verify compliance, knowledge of safe movement procedures, and ability to inspect completed towers recognising when they are correctly assembled versus when assembly errors or damage create hazards. Effective mobile scaffold training should cover several key elements: understanding of different mobile scaffold system types and their specific assembly requirements; manufacturer assembly instructions including connection methods, bracing requirements, and configuration limitations; stability ratio principles including how to measure dimensions, calculate ratios, and verify compliance with 4:1 or 3:1 limits; component inspection including defect recognition and when equipment should be removed from service; safe movement procedures emphasising platform clearing requirements, force application techniques, surface assessment, and height reduction for movement; platform loading management and Safe Working Load compliance; fall protection requirements during assembly and use; and emergency procedures for scaffold incidents. Training should include both theoretical knowledge and hands-on practical assembly under supervision, allowing workers to physically practice correct assembly techniques before authorising independent work. Competency assessment should verify workers can demonstrate correct assembly, stability verification, and movement procedures before they work unsupervised. Many mobile scaffold manufacturers or suppliers provide training on their specific systems which is valuable for workers who will use that equipment. Training records should be maintained documenting what training was provided, when it occurred, assessment results, and refresher training completion. Refresher training should be provided annually or when new equipment systems are introduced to address skill degradation and reinforce critical safety messages. Beyond initial training, workers new to mobile scaffold work should work under supervision of experienced scaffold users for a period before independent work is authorised. Site induction should address site-specific mobile scaffold hazards including ground conditions, overhead clearances, and emergency procedures. Supervisors and competent persons conducting post-assembly inspections require more advanced training including interpretation of manufacturer specifications, structural assessment, and regulatory compliance requirements. The investment in comprehensive training pays dividends through reduced incident rates, correct equipment assembly, and improved safety culture around scaffold work.

Can I modify or alter a mobile scaffold tower after it's been assembled and inspected?

No, you must not modify, alter, or remove components from a mobile scaffold tower after it has been assembled and inspected without complete disassembly and proper reassembly following manufacturer instructions. This prohibition exists because any modification changes the structural configuration and stability characteristics from what was verified during the post-assembly inspection, potentially creating serious hazards that are not immediately obvious. Common prohibited modifications that workers sometimes attempt include removing horizontal or diagonal bracing to allow easier material handling or access; removing platform guardrail sections to facilitate material transfer; adding additional height by stacking extra frame levels without stability verification; removing platform levels to create open space for material storage or movement; reconfiguring base frames or removing outriggers changing stability ratios; and attaching items including hoisting equipment, signs, or tarpaulins to tower structure creating additional loading or wind resistance. Each of these alterations compromises the structural integrity or stability that was confirmed during inspection. If tower configuration needs to change to accommodate different work requirements, the correct procedure is to completely dismantle the tower, plan the new configuration verifying it meets stability and manufacturer limits, reassemble with the new configuration following manufacturer instructions, and conduct new competent person inspection of the altered tower before any use. Simply adding or removing components during use circumvents the assembly and inspection procedures that ensure safety. The temptation to make field modifications often stems from discovering that the assembled tower is not quite right for the work—perhaps a platform level is in a slightly wrong position or bracing interferes with material handling. Rather than modifying the tower to suit, either work with the tower as correctly assembled or invest the time to dismantle and reassemble correctly. For temporary component removal such as briefly opening a guardrail gate for material transfer, the component must be immediately replaced and secured after the transfer is complete—leaving guardrails open or removed creates unprotected fall hazards. Any damage to tower components discovered during use should trigger immediate work stoppage, tower quarantine, and assessment of whether damaged components can be replaced allowing continued use or whether the tower must be dismantled pending repair. Document any modifications, repairs, or component replacements in maintenance records and conduct new competent person inspection after any changes before resuming use.

What ground surface conditions are suitable for mobile scaffold use?

Mobile scaffold towers require firm, smooth, level surfaces for safe use, as the castors provide mobility but create instability on inadequate ground conditions. Suitable surfaces include concrete floors in good condition, sealed or painted concrete with minimal surface deterioration, steel plate or metal deck flooring, and smooth level timber floors with adequate load-bearing capacity. These surfaces provide firm support preventing castor sinking, smooth textures allowing controlled rolling without sudden wheel resistance, and level profiles avoiding slopes that create gravitational tip-over forces. Unsuitable surfaces that prohibit mobile scaffold use include unsealed or soft ground including soil, sand, gravel, or crushed rock where castors will sink; rough concrete with significant deterioration, spalling, or aggregate exposure creating uneven rolling; floors with slopes exceeding 1 degree from horizontal creating tip-over risks; temporary flooring over rough substrates where surface levelness is questionable; exterior paved surfaces affected by weather including wet, muddy, icy, or loose material-covered areas; and surfaces with holes, gaps, or significant irregularities causing sudden castor impacts. Before positioning mobile scaffolds, assess ground surface by walking the area feeling for firmness, levelness, and surface condition. Use a spirit level to measure floor slopes—any slope exceeding 1 degree indicates the surface is unsuitable for mobile scaffold unless the tower is orientated with base aligned to the slope direction and height is significantly reduced. Look for visual signs of problematic surfaces including water pooling indicating soft areas or poor drainage, cracking or deterioration indicating structural weakness, debris or materials creating trip hazards for castors, and transitions between different floor materials creating steps or level changes. If ground conditions are marginal or uncertain, mobile scaffolds are not the appropriate access method and fixed scaffolding with adjustable screw jacks capable of accommodating uneven surfaces should be used instead. Never attempt to level mobile scaffold bases using shims, timber packers, or other improvised levelling methods as these create instability and can shift during use or movement. For outdoor work, ground conditions are rarely suitable for mobile scaffolds unless on properly prepared concrete or asphalt surfaces—most outdoor sites require fixed scaffolding with appropriate base jacks and mud sills. Remember that mobile scaffold advantages of quick assembly and repositioning are only realised when ground conditions allow safe use—forcing mobile scaffold use on unsuitable surfaces sacrifices safety for questionable convenience. Assess honestly whether the ground surface truly meets suitability criteria rather than optimistically assuming it will be adequate.

Related SWMS documents

Browse all documents

working-at-height

Erecting Fixed Scaffold Safe Work Method Statement

Comprehensive SWMS for planning, erecting, inspecting, and dismantling fixed scaffolding including structural design, fall protection, material handling, and compliance verification.

View document

working-at-height

Erecting Suspended Powered Scaffolds Safe Work Method Statement

Comprehensive SWMS for installing and commissioning suspended powered scaffold systems including structural verification, rigging, counterweight safety, electrical systems, load testing, and inspection procedures.

View document

working-at-height

EWP-Boom-Cherrypicker-Scissor Lift Safe Work Method Statement

Comprehensive SWMS for operating boom lifts, cherry pickers, and scissor lifts including licensing requirements, pre-start inspections, stability assessment, and emergency procedures.

View document

working-at-height

Height Access Equipment Safe Work Method Statement

Comprehensive SWMS covering selection, inspection, assembly, and safe use of various height access equipment types including platforms, towers, and access systems.

View document

working-at-height

Ladders Safe Work Method Statement

Comprehensive SWMS for extension ladders, step ladders, and platform ladders including selection criteria, setup procedures, securing methods, and safe use requirements.

View document

working-at-height

Overhead Electric Lines - Working Near Safe Work Method Statement

Comprehensive SWMS for work near overhead electric lines including voltage identification, minimum approach distances, exclusion zones, and emergency procedures.

View document
Trusted by 1,500+ Australian construction teams

Mobile Scaffold SWMS Sample

Professional SWMS created in 5 seconds with OneClickSWMS

  • Instant PDF & shareable link
  • Auto-filled risk matrix
  • Editable Word download
  • State-specific compliance
  • Digital signature ready
  • Version history preserved
Manual creation2-3 hours
OneClickSWMS5 seconds
Save 99% of admin time and eliminate manual errors.
Generate SWMS NowView sample SWMS

No credit card required • Instant access • Unlimited drafts included in every plan

PDF Sample

Risk Rating

BeforeHigh
After ControlsLow

Key Controls

  • • Pre-start briefing covering hazards
  • • PPE: hard hats, eye protection, gloves
  • • Emergency plan communicated to crew

Signature Ready

Capture digital signatures onsite and store revisions with automatic timestamps.

Continue exploring

Hand-picked SWMS resources
Height Access EquipmentExplore →Ewp Boom Cherrypicker Scissor LiftExplore →

Ready to deliver professional SWMS in minutes?

OneClickSWMS powers thousands of compliant projects every week. Join them today.

Join 2,000+ Protected CompaniesExplore Safety Guides