Handrails that are not circular must have a minimum perimeter of how many inches?

The requirement for handrails that are not circular to have a minimum perimeter of 4 inches is based on safety and usability standards in building codes. The 4-inch perimeter ensures that the handrail is sufficiently wide enough for individuals to grasp securely, providing adequate support when ascending or descending stairs.

Handrails are critical in helping to prevent falls and ensuring the safety of individuals, and a minimum perimeter of 4 inches allows for a comfortable grip, accommodating various hand sizes and ensuring accessibility for all users.

This requirement highlights the importance of ergonomic design in construction and reinforces code compliance, which is essential for safety in building projects.