OSHA 10-Hour Construction ReviewStairways and LaddersHard

A construction worker is assigned to perform tasks from a stairway landing. According to OSHA, what is the minimum required width for a stairway landing in the direction of travel to ensure safe movement and prevent falls?

  1. A20 inches (51 cm)
  2. B36 inches (91 cm)
  3. C22 inches (56 cm)
  4. D30 inches (76 cm)
Show answer & explanation

Correct answer: C. 22 inches (56 cm)

OSHA requires that every stairway landing must be at least 22 inches (56 cm) in width in the direction of travel and at least 30 inches (76 cm) in length, measured in the direction of travel.

Why the other options are wrong

  • A. This width is too narrow and does not meet the minimum OSHA requirement for stairway landings.
  • B. While safer, this is not the minimum required width; 22 inches is the specified minimum.
  • D. This is the minimum length required, not the width, or it's a common width for stairways themselves, but not the minimum *landing* width in direction of travel.

Stairway Landing Dimensions

Stairway landings must be at least 22 inches (56 cm) wide in the direction of travel and at least 30 inches (76 cm) long.

  • Ensures adequate space for users.
  • Prevents falls at transitions.
  • Applies to all temporary and permanent stairways.

Memory trick: Twenty-two wide, thirty long, so you don't go wrong!

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