Who Uses Scaffolds
Workers who use scaffolds can be divided into two groups: erectors/dismantlers and users.
Erectors/Dismantlers: Erectors and dismantlers are those workers whose are mainly responsible for assembling and disassembling scaffolding. This is done before other work can continue, and/or after they have completed the work.
Users: Scaffold users are those whose work requires them, at least some of the time, to be supported by scaffolding.
Qualified Persons
Employers are required to have a qualified person provide training all scaffold erectors, dismantlers, and users. The qualified person must also do adequate pre-planning to ensure the scaffold is erected properly.
Pre-planning includes:
- Determining the type of scaffold necessary for the job,
- Determining the maximum load of the scaffold,
- Assuring a good foundation, and
- Avoiding electrical hazards.
We'll cover responsibilities for qualified person later in the module.
Two workers were finishing internal work in a garage about 16 ft high, stapling plastic sheeting to the ceiling. One worker used a scaffold raised to about 130 inches (~10.8 ft), while another used a scissor lift. The scaffold lacked guardrails and was not fully planked. The worker on the scaffold fell to the concrete floor below and later died in the hospital from a brain bleed.
Key Failures / Contributing Factors:
- No guardrails or fall protection on scaffold
- Scaffold not fully decked (planked) — gaps existed
- Work at height without proper safety controls
Lessons Learned:
- Guardrails, midrails, and toeboards must be installed wherever needed on scaffolds
- Scaffold platforms must be fully planked with safe spacing
- Employers must ensure fall protection systems are used when required
- Regular inspection by a competent person is essential to catch unsafe scaffold conditions
Knowledge Check Choose the best answer for the question.
1-3. Who must do adequate pre-planning to ensure the scaffold is erected properly?
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