OSHA 10-Hour Construction ReviewScaffoldsMedium
A worker is erecting a supported scaffold. The scaffold platform is 20 feet above the ground. Which of the following fall protection measures is required by OSHA for this worker?
- ASafety net system
- BPersonal fall arrest system
- CGuardrail system
- DWarning line system
Show answer & explanationAnswer & explanation
Correct answer: C. Guardrail system
For scaffolds, OSHA generally requires fall protection for workers more than 10 feet above a lower level. The primary method of fall protection on supported scaffolds is a guardrail system. While personal fall arrest systems are an option, guardrails are the standard first line of defense.
Why the other options are wrong
- A. Safety net systems are typically used for much larger areas or when other systems are impractical.
- B. A personal fall arrest system (PFAS) is an acceptable form of fall protection, but guardrails are the primary and most common requirement for supported scaffolds.
- D. Warning line systems are typically used on low-slope roofs, not scaffolds.
Scaffold Fall Protection Threshold
OSHA mandates fall protection for workers on scaffolds when they are working at specific heights above a lower level.
- General fall protection trigger height for scaffolds: 10 feet (3.0 meters).
- Guardrail systems are the primary method of fall protection for supported scaffolds.
- Personal Fall Arrest Systems (PFAS) are an alternative, especially for suspended scaffolds or when guardrails are not feasible.
Memory trick: Ten Feet Up, Guard Your Step.