Mobile Scaffold Safety Essentials

Scaffolding Safety
English (NZ)

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.
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  • 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

Where possible, use an actual incident that you have experienced or been involved in.

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.
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  • 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.
Worksafe

Disclaimer

“The information provided in this toolbox talk is provided for informational and educational purposes only. It is not intended to be a substitute for professional legal, safety, or regulatory advice. The information presented is based on best practices and general industry standards but may not apply to all workplace situations.
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It is the responsibility of the employer, supervisors, and workers to ensure compliance with applicable federal, state, and local laws, regulations, and standards, including but not limited those of the Occupational Safety and Health Administration (OSHA). Site App Pro, its affiliates, agents or representatives, as well as the authors, presenters, and distributors of this toolbox talk assume no liability for the use or application of the information provided.
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Participants are encouraged to consult appropriate legal, safety, or regulatory professionals to address specific concerns or questions. Always follow your organization's policies and procedures for workplace safety and hazard mitigation.”

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