Occupational Safety and Health Administration OSHA

Slide 25

Slide 25


Title: 1926.451(e) Access (cont'd)

Type: Text Slide with Image


  • Hook-on attachable ladders

    - Specifically designed for type of scaffold

    - Lowest rung no more than 24 inches above level on which scaffold is supported

    - Rest platforms at 35 foot intervals when more than 35 feet high

    - Minimum rung length 11 ½ inches, and a maximum space between rungs 16 ¾ inches

[Includes photo of scaffolding with properly attached ladder]

Speaker Notes:

When scaffold platforms are more than 2 feet above or below a point of access, portable ladders, hook-on ladders, attachable ladders, or other means of safe access must be provided. Other types of access may include stair towers, ramps, or walkways.

When using portable hook-on ladders, they must be positioned so they do not tip the scaffold over.

Additionally, the spacing of the ladder rungs must be 16 ¾ inches or less and have a minimum length of 11 ½ inches.

Following these guidelines will allow you to safely access scaffolding and reduce your risk of falls.

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