# access-required-trigger-height — Every numeric dimensional tolerance and safety factor in OSHA's scaffold general requirements (29 CFR 1926.451)

For access-required-trigger-height, paragraph citation is 1926.451(e)(1); type of requirement is trigger height; value (imperial) is 2 feet; value (metric) is 0.6 m; applies to is scaffold platforms, recorded from its source on 2026-08-31; source re-checked 2026-09-14.

- **Requirement ID:** access-required-trigger-height _(our reading, not quoted from the source)_
- **Paragraph citation:** 1926.451(e)(1) _(our reading, not quoted from the source)_
- **Type of requirement:** trigger height _(our reading, not quoted from the source)_
- **Value (imperial):** 2 feet _(verified: appears in the quote below)_
- **Value (metric):** 0.6 m _(verified: appears in the quote below)_
- **Applies to:** scaffold platforms _(verified: appears in the quote below)_
- **Regulation section heading:** Access _(verified: appears in its own passage below)_

## What the source says

> (1) When scaffold platforms are more than 2 feet (0.6 m) above or below a point of access, portable ladders, hook-on ladders, attachable ladders, stair towers (scaffold stairways/towers), stairway-type ladders (such as ladder stands), ramps, walkways, integral prefabricated scaffold access, or direct access from another scaffold, structure, personnel hoist, or similar surface shall be used.

## Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

### Regulation section heading

> (e) Access.

## Source

- https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1926/subpart-L/section-1926.451

Last verified: 2026-09-14. Review by: 2027-08-31.
Part of [Every numeric dimensional tolerance and safety factor in OSHA's scaffold general requirements (29 CFR 1926.451)](https://referencesource.org/osha-scaffold-dimensional-tolerances/).