505.7 – Cross Section

505.7 Cross Section.

505.7.1 Circular Cross Section.
Handrail gripping surfaces with a circular cross section shall have an outside diameter of 32 mm (1 1/4″) minimum and 51 mm (2″)

505.7.2 Non-Circular Cross Sections.
Handrail gripping surfaces with a non-circular cross section shall have a perimeter dimension of 100 mm (4″) minimum and 160 mm (6 1/4″) maximum, and a cross-section dimension of 57 mm (2 1/4″) maximum.