How far should the top of a ladder extend above a supporting structure?

The correct answer is that the top of a ladder should extend at least 1.0 meter above the supporting structure. This extension provides a stable and secure handhold for individuals climbing or descending the ladder. It helps prevent falls by allowing the user to maintain three points of contact—two hands and one foot or two feet and one hand—when stepping onto or off the ladder. This safety measure is particularly important when working at heights or over edges, as it enhances stability while also offering a means of support.

In the context of ladder safety regulations, having adequate extension above a supporting structure is a critical requirement. This guideline ensures that workers can transition safely from the ladder to the work surface. When the ladder does not extend sufficiently above the supporting structure, users may be at greater risk of losing their grip or stability when entering or exiting. Therefore, the 1.0-meter guideline is a standard safety practice in the construction and maintenance industries to promote overall safety when using ladders.