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603 Stairway and Ladder Safety
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Temporary Stairways Used During Construction

The following requirements apply to all temporary stairways used during construction.

Temporary stairways used during construction
  • Except during construction of the actual stairway, stairways with metal pan landings and treads must not be used where the treads and/or landings have not been filled in with concrete or other material, unless the pans of the stairs and/or landings are temporarily filled in with wood or other material. All treads and landings must be replaced when worn below the top edge of the pan.
  • Except during construction of the actual stairway, skeleton metal frame structures and steps must not be used (where treads and/or landings are to be installed at a later date) unless the stairs are fitted with secured temporary treads and landings.
  • Temporary treads must be made of wood or other solid material and installed the full width and depth of the stair.

Knowledge Check Choose the best answer for the question.

3-2. During construction, what must the treads of temporary stairs be made of?