What are the structural supports at the rungs of a ladder called?

The structural supports at the rungs of a ladder are referred to as beams. In ladder construction, beams are the horizontal bars that provide strength and stability to the rungs, enabling them to bear weight safely. When a firefighter climbs a ladder, the beams ensure that the rungs remain secure and can support the weight applied during use. Understanding the role of beams in ladder construction is essential for establishing safety practices and ensuring the effective use of ladders in firefighting scenarios.

Trusses are typically used in constructing larger structures and are not specifically designed for the design and function of a ladder. Bars can refer to various forms of structural components but do not specifically denote the function of providing support as beams do. The term supports is too general and does not specifically identify the horizontal structures vital to the ladder's functionality.