# rope-replacement-outside-wire-diameter-loss — Every numeric dimensional tolerance and safety factor in OSHA's scaffold general requirements (29 CFR 1926.451)

For rope-replacement-outside-wire-diameter-loss, paragraph citation is 1926.451(d)(10)(iv); type of requirement is replacement threshold; value (imperial) is more than one-third of the original diameter of the outside wires; applies to is Ropes; regulation section heading is Criteria for suspension scaffolds, recorded from its source on 2026-08-31; source re-checked 2026-09-14.

- **Requirement ID:** rope-replacement-outside-wire-diameter-loss _(our reading, not quoted from the source)_
- **Paragraph citation:** 1926.451(d)(10)(iv) _(our reading, not quoted from the source)_
- **Type of requirement:** replacement threshold _(our reading, not quoted from the source)_
- **Value (imperial):** more than one-third of the original diameter of the outside wires _(verified: appears in the quote below)_
- **Applies to:** Ropes _(verified: appears in the quote below)_
- **Regulation section heading:** Criteria for suspension scaffolds _(verified: appears in its own passage below)_

## What the source says

> (10) Ropes shall be inspected for defects by a competent person prior to each workshift and after every occurrence which could affect a rope's integrity. Ropes shall be replaced if any of the following conditions exist: (i) Any physical damage which impairs the function and strength of the rope. (ii) Kinks that might impair the tracking or wrapping of rope around the drum(s) or sheave(s). (iii) Six randomly distributed broken wires in one rope lay or three broken wires in one strand in one rope lay. (iv) Abrasion, corrosion, scrubbing, flattening or peening causing loss of more than one-third of the original diameter of the outside wires.

## 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

> (d) Criteria for suspension scaffolds.

## 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/).