Where on a ladder is the load transmitted from the climber to the ladder's main structural members?

Where on a ladder is the load transmitted from the climber to the ladder's main structural members?

• A. Tip
• B. Rung
• C. Hinge
• D. Base

Answer: (B)

The load from a climber is transmitted through the rung. When you stand on a rung, your weight pushes down on that horizontal step, and the rung is connected to both side rails. That direct connection lets the rung transfer the downward force into the rails, which then carry the load down to the base and into the ground. The tip at the top isn’t where standing load is transferred into the ladder’s main structure, and the base merely supports the ladder against the ground—the actual path from your weight goes through the rung into the rails. Hinges may exist on some ladders but aren’t the primary load path for typical standing weight.