What is a rung on a ladder?

A rung on a ladder is a horizontal crosspiece that connects two vertical side rails of the ladder. It serves as a step for a person climbing up or down the ladder. Rungs are typically made of metal, wood, or plastic and are spaced evenly apart for safe and easy climbing. The size and spacing of rungs on a ladder determine the ladder's overall height, weight capacity, and stability. It is important to inspect the rungs of a ladder before use to ensure they are secure and free of any defects that could pose a safety hazard.