OSHA 10-Hour Construction ReviewStairways and LaddersMedium
A construction site needs a fixed ladder to access a permanent elevated platform. According to OSHA, what is the maximum permissible distance between the rungs of a fixed ladder?
- A16 inches (41 cm)
- B10 inches (25 cm)
- C12 inches (30 cm)
- D14 inches (36 cm)
Show answer & explanationAnswer & explanation
Correct answer: D. 14 inches (36 cm)
OSHA specifies that the rungs of fixed ladders must be uniformly spaced and not more than 14 inches (36 cm) apart. This ensures consistent foot placement and reduces the risk of missteps.
Why the other options are wrong
- A. This spacing is too wide and exceeds the OSHA maximum, creating a fall hazard.
- B. This spacing is acceptable but is not the maximum allowed.
- C. This is a common spacing, but not the maximum allowed by OSHA.
Fixed Ladder Rung Spacing
The distance between rungs on a fixed ladder must not exceed 14 inches (36 cm).
- Ensures uniform foot placement.
- Reduces fatigue and risk of missteps.
- Applies to all fixed ladders in construction.
Memory trick: Fourteen inches, no more, for safe climbing, to the core!