The minimum height of guardrails should be at least ____ inches.

The minimum height of guardrails is specified to ensure safety in commercial buildings, particularly in areas where there is a risk of falling. The requirement for a guardrail to be at least 42 inches high is based on standards set by codes such as the International Building Code (IBC) and Occupational Safety and Health Administration (OSHA) regulations.

This height is intended to minimize the risk of individuals leaning over or falling from elevated surfaces, particularly in settings like stairways, balconies, and elevated walkways. A guardrail that stands at 42 inches provides a sufficient barrier for most adults, effectively reducing the likelihood of accidental falls.

Guardrails that are lower than this minimum height would not provide adequate protection, as they may not effectively prevent an individual from falling over in certain circumstances, especially in crowded or high-traffic areas. Therefore, the specification of 42 inches as the minimum height for guardrails plays a crucial role in maintaining safety standards in commercial buildings.