What are the cross members on a ladder called that provide footholds for climbing?

Rungs are the cross members on a ladder that provide footholds for climbing. They are specifically designed to be spaced at intervals, offering a stable surface for a firefighter or user to step on while ascending or descending the ladder. Rungs are typically constructed to support significant weight and are positioned to ensure safe and efficient movement.

Rails, on the other hand, refer to the long sides of the ladder that provide structural integrity and keep the ladder rigid. Steps generally refer to components of stairways or other types of platforms, while beams pertain to structural supports in various contexts but are not specifically related to ladder design. Understanding the terminology related to ladder structures is crucial for effective communication and safety in firefighting operations.