How many inches should there be between a handrail and an adjacent wall?

The requirement for spacing between a handrail and an adjacent wall is to ensure safe and functional use of the handrail. A spacing of 1 1/2 inches is designed to provide enough clearance for users to comfortably grasp the handrail without their hand getting pinched against the wall. This distance helps to accommodate the average width of a hand while still allowing users to effectively and securely hold the rail when navigating stairs or ramps.

It's important to adhere to this standard as it enhances safety for individuals using the handrail, especially during emergencies. Adequate clearance prevents injuries and allows enough space for any hand movements needed, contributing to overall accessibility. Different spacing options do not provide the same balance of safety and usability, which is why 1 1/2 inches is the accepted standard.