Employers must provide fall protection to construction workers on scaffolds that are 10 feet above the lower level (or higher).

Quick Scoop: The Key Point

  • OSHA’s scaffold standard requires fall protection (like guardrails or personal fall arrest systems) when a scaffold is 10 ft (3.1 m) or more above a lower level.
  • This 10‑foot threshold is specific to scaffolds ; it is different from the 6‑foot rule that applies to many other construction fall hazards.
  • The exact same wording appears in common training/quiz material: for “Employers must provide fall protection to construction workers working on scaffolds that are how many feet above the lower level?”, the correct answer option is 10 feet.

Why 10 Feet Matters in Practice

  • Above 10 feet, workers must be protected by guardrails, a personal fall arrest system (PFAS), or both , depending on the scaffold type.
  • This rule aims to reduce serious injuries and fatalities from scaffold falls, which remain a major cause of construction accidents.

In short: once your scaffold platform is 10 feet up or more, fall protection is no longer optional—it’s an OSHA obligation.

Answer for your post title:
10 feet above the lower level.

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