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603 Stairway and Ladder Safety
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Folding and Platform Ladders

Standard folding ladders, also called stepladders, have flat steps, a hinged back, and are not adjustable. All folding and platform ladders are designed for use by only one person. Folding step ladders range in size from 4 ft. to 20 ft. in length along the side rail.

Two people each climbing a different type of ladder.
Folding and platform ladders are designed for only one person.

The highest standing level is required to be marked on the specifications label on the side rail of the product. The maximum work height is established by adding the user's height and reach to the highest standing level of the stepladder. (Werner Ladders)

  • Use them only on firm, level surfaces.
  • They are available in metal, wood, or reinforced fiberglass.
  • They must have a metal spreader or locking arm and cannot exceed 20 feet.
  • They only supports one worker.
This video was created by Oregon OSHA and provides great information about platform (aka podium) ladders.

Platform ladders are self-supporting portable ladders that are non-adjustable in length, with a platform provided at the highest intended standing level. They have a hinged design for ease of storage and is intended for use by one person. The top platform is surrounded on three sides by a railing that is at least 20 inches higher than the platform surface. A folding Bucket (Pail) Shelf may also be provided.

Platform Ladders range in size from 2 ft. to 18 ft. in length as measured from the bottom along the side rail to the top of the platform. (Werner Ladders)

  • It has a hinged design for ease of storage and is intended for use by one person.
  • The top platform is surrounded on three sides by a railing that is at least 20 inches higher than the platform surface.
  • A folding Bucket (Pail) Shelf may also be provided.
  • They support only one worker.

Knowledge Check Choose the best answer for the question.

1-5. How many persons may work on a folding or platform ladder?