handrails should come up no more than

Handrails should come up no more than 38 inches and no less than 34 inches measured vertically from the nosing (front edge) of the stair tread according to the International Building Code (IBC) and Americans with Disabilities Act (ADA) standards. OSHA allows handrails between 30 inches and 38 inches but requires the upper rail for stair rail systems installed after January 17, 2017, to be at least 42 inches, with a separate handrail between 30 and 38 inches for safety. This height range ensures the handrail is easy to reach, provides proper support, and meets safety regulations for both commercial and residential buildings.