Mobile Scaffold Safety Essentials
The Problem
Mobile scaffolds are convenient and versatile, allowing work to be carried out at multiple locations without dismantling the structure. However, they present unique hazards such as tipping, unsafe movement, or failing to stabilise the platform. If these risks aren’t managed properly, accidents like falls, scaffold collapse, or injuries can occur. Today, we’ll discuss these hazards, WorkSafe New Zealand requirements, and the steps needed to ensure mobile scaffold safety.
Identify the Hazards
- Scaffold Instability: Poor bracing, uneven surfaces, or incorrect overhangs can cause the scaffold to tip or collapse.
- Unsafe Movement: Moving the scaffold while someone is standing on it, pushing it from elevated points, or pulling on surrounding structures increases the risk of tipping.
- Wheel and Caster Issues: Unlocked or unsecured castors can lead to unexpected movement.
- Unsafe Riding Conditions: Riding mobile scaffolds without meeting stability and levelling requirements is dangerous.
Safety Practices and Preventative Measures
Scaffold Stability and Construction
- Use proper bracing (cross, horizontal, or diagonal) to prevent sway or collapse.
- Ensure all vertical supports are plumb, level, and securely fastened.
- Do not allow platforms to extend beyond the base unless stabilised using outriggers.
- Use adjustable base plates or screw jacks for levelling on uneven ground.
Caster and Wheel Safety
- Secure caster stems to scaffold legs with locking pins or other approved devices.
- Always lock wheels when the scaffold is stationary.
Safe Movement of Scaffolds
- Push the scaffold from the base to prevent tipping.
- Avoid pushing from above 1.5 metres (approx. 5 feet).
- NEVER pull on structures like roof framing or joists while on the scaffold.
- Stabilise the scaffold if necessary to prevent tipping during movement.
Rules for Riding on Mobile Scaffolds
Workers may only ride mobile scaffolds when:
- The ground is level (within 3°) and free of holes or obstructions.
- The scaffold’s height-to-base ratio is 2:1 or less (or meets WorkSafe stability requirements).
- Outriggers (if required) are installed and extended correctly.
- No part of the scaffold platform extends beyond the base width unless stabilised.
- Everyone on the scaffold is aware that it will be moved.
Common Hazards to Avoid
- Moving scaffolds without locking the wheels.
- Overextending the platform without stabilisation.
- Riding scaffolds without following safe use requirements.
Real-Life Case or Scenario
A worker suffered serious injuries after trying to move a mobile scaffold by pulling on overhead framing while standing on the platform. The scaffold tipped and the worker fell over 3 metres. This could have been avoided by locking the wheels, stabilising the scaffold, and using correct movement techniques.
Employee Responsibilities
- Inspect mobile scaffolds before use to ensure correct bracing and wheel locking.
- Never ride a scaffold during movement unless all safety conditions are met.
- Use safe pushing methods—never pull on structures or overextend platforms.
- Report unsafe conditions or damaged scaffolds immediately.
Employer Responsibilities
- Provide compliant mobile scaffolds with proper bracing and locking devices.
- Train workers on scaffold stability, safe movement, and riding requirements.
- Carry out regular inspections and remove unsafe equipment from service.
Discussion & Questions
- “What issues have you come across when working with mobile scaffolds?”
- “How do you make sure your scaffold is stable before using it?”
Encourage workers to share tips or raise concerns.
Commitment/Action Plan
Let’s commit to inspecting and stabilising all mobile scaffolds before use. Starting today, take a few minutes to ensure wheels are locked and scaffolds are safe to move. These checks can prevent serious injuries.
Wrap-Up
Mobile scaffolds are great tools—but only when used correctly. Following WorkSafe NZ’s guidance and using safe work practices helps us eliminate risks. Thanks for putting safety first.
Standards Overview
WorkSafe NZ’s Good Practice Guidelines for Scaffolding in New Zealand require:
- Mobile scaffolds must be constructed and used according to the manufacturer’s and industry’s best practice.
- Scaffolds must be braced, stable, and used on level ground.
- Workers must not move scaffolds while on them unless specific safety criteria are met.
- Fall protection, guardrails, and proper access are required depending on the height and task.
Disclaimer
These toolbox talks are provided for informational and educational purposes only and are not a substitute for professional legal, health and safety, or regulatory advice.
The content reflects recognised best practices and general industry standards as at the date of publication. However, it may not be applicable to all workplace environments or specific operational contexts.
It is the responsibility of the Person Conducting a Business or Undertaking (PCBU), as well as officers, workers, and other duty holders under the Health and Safety at Work Act 2015 (HSWA), to ensure compliance with all relevant laws, regulations, and WorkSafe New Zealand guidance.
The authors, presenters, and distributors of this toolbox talk disclaim all liability for any loss, damage, or injury arising from the use or reliance on the information provided. Users should seek advice from a suitably qualified health and safety professional or legal advisor for guidance tailored to their specific circumstances.
Always follow your organisation’s policies, procedures, and safe work practices to manage risks and maintain a safe and healthy workplace.
All Rights Reserved Site App Pro 2025