# end-frame-climbing-maximum-vertical-spacing — Every numeric dimensional tolerance and safety factor in OSHA's scaffold general requirements (29 CFR 1926.451)

For end-frame-climbing-maximum-vertical-spacing, paragraph citation is 1926.451(e)(9)(iii); type of requirement is maximum spacing; value (imperial) is 22 inches; applies to is erecting or dismantling tubular welded frame scaffolds; regulation section heading is Access, recorded from its source on 2026-08-31; source re-checked 2026-09-14.

- **Requirement ID:** end-frame-climbing-maximum-vertical-spacing _(our reading, not quoted from the source)_
- **Paragraph citation:** 1926.451(e)(9)(iii) _(our reading, not quoted from the source)_
- **Type of requirement:** maximum spacing _(our reading, not quoted from the source)_
- **Value (imperial):** 22 inches _(verified: appears in the quote below)_
- **Applies to:** erecting or dismantling tubular welded frame scaffolds _(verified: appears in the quote below)_
- **Regulation section heading:** Access _(verified: appears in its own passage below)_

## What the source says

> (iii) When erecting or dismantling tubular welded frame scaffolds, (end) frames, with horizontal members that are parallel, level and are not more than 22 inches apart vertically may be used as climbing devices for access, provided they are erected in a manner that creates a usable ladder and provides good hand hold and foot space.

## 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/).