CSLB C-33 Painting & DecoratingSafetyEasy
A painting contractor is using a portable extension ladder to access a second-story window. According to OSHA, how far must the ladder extend above the upper landing surface?
- AAt least 2 feet
- BAt least 4 feet
- CAt least 1 foot
- DAt least 3 feet
Show answer & explanationAnswer & explanation
Correct answer: D. At least 3 feet
OSHA 1926.1053(b)(1) requires that when a ladder is used to access an upper landing surface, the side rails must extend at least 3 feet (0.9 m) above the landing surface.
Why the other options are wrong
- A. 2 feet is also insufficient for the required safety margin.
- B. 4 feet is more than the minimum required but not the specific OSHA minimum.
- C. 1 foot is insufficient for safe gripping and stability when transitioning.
Extension Ladder Extension
Portable ladders used to access an upper landing must extend at least 3 feet above that landing surface for safe transition.
- This extension provides a stable handhold for mounting and dismounting.
- The 3-foot rule helps prevent falls by reducing the need to overreach.
- Ladders should also be placed at a 4:1 horizontal to vertical ratio.
Memory trick: Three Feet for Firm Footing.