How many inches must the top of a ladder extend above the top of a trench?

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Multiple Choice

How many inches must the top of a ladder extend above the top of a trench?

Explanation:
Ladder extension above a trench is all about safe access and egress. The top of the ladder must extend enough above the trench edge so you have a sturdy handhold and can step onto stable ground without losing balance. The standard requires at least three feet (36 inches) of extension, which is why 36 inches is the correct choice. Shorter extensions wouldn’t give a reliable grip or a safe transition, while a longer extension like 48 inches isn’t necessary to meet the requirement—the question focuses on the minimum that must be provided.

Ladder extension above a trench is all about safe access and egress. The top of the ladder must extend enough above the trench edge so you have a sturdy handhold and can step onto stable ground without losing balance. The standard requires at least three feet (36 inches) of extension, which is why 36 inches is the correct choice. Shorter extensions wouldn’t give a reliable grip or a safe transition, while a longer extension like 48 inches isn’t necessary to meet the requirement—the question focuses on the minimum that must be provided.

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