Which two main structural components run the entire length of a ladder?

Which two main structural components run the entire length of a ladder?

• A. Rungs
• B. Beams
• C. Rails
• D. Steps

Answer: (B)

The main structure that runs the entire length of a ladder are the side rails. These two long pieces form the framework and carry the weight, extending from the bottom to the top of the ladder. The rungs or steps are attached between these rails at regular intervals to provide footholds, but they do not run the full height themselves. Beams isn’t the standard term for this ladder component, and steps or rungs are the crosspieces that connect the rails rather than the lengthwise supports. So the rails are the long, load-bearing parts that span the full height of the ladder.