At What Height Is Fall Protection Required?
In construction, OSHA requires fall protection at 6 feet above a lower level under 29 CFR 1926.501(b)(1). The trigger is different for a few specific activities: scaffolds require it at 10 feet (1926.451), steel erection at 15 feet (Subpart R, with options for connectors), and holes and skylights at any height a worker could fall through. General industry uses a 4-foot trigger, which is why the number people remember depends on which standard applies. On a construction site, the answer is 6 feet for almost everything.
The trigger heights by situation
| Situation | Fall protection required at | Standard |
|---|---|---|
| General construction (edges, roofs, holes) | 6 feet | 1926.501(b)(1) |
| Scaffolds | 10 feet | 1926.451(g) |
| Steel erection | 15 feet (connectors have options) | 1926 Subpart R |
| Holes and skylights | Any height a worker could fall or step through | 1926.501(b)(4) |
| Ladders | No fall-arrest trigger, but ladder rules apply | 1926.1053 |
| General industry (not construction) | 4 feet | 1910.28 |
Why people give different answers
The 4-foot number is real, but it is the general industry trigger under 1910.28, not construction. Contractors work under the 1926 construction standards, where 6 feet is the rule. Mixing them up is a common way a plan gets a control wrong, so state the standard, not just the number, in your documents.
Document the right trigger for your work
A site-specific safety plan should state the trigger height for the actual work and the system used to meet it. TailgateDocs generates one for your project for $49, citing 1926.501 correctly, and a written safety program ($149) for the company-wide policy.
Common questions
▸Is fall protection required at 4 feet or 6 feet?
In construction, 6 feet under 1926.501. The 4-foot trigger applies to general industry under 1910.28. Contractors on a jobsite use 6 feet for most work.
▸At what height do you need fall protection on a scaffold?
10 feet above a lower level under 1926.451(g), which is higher than the 6-foot general construction trigger.
▸Do holes require fall protection at any height?
Yes. Under 1926.501(b)(4), holes and skylights a worker could fall or step through must be covered or guarded regardless of the height below.
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