2010 ADA Standards for Accessible Design Pocket Guide
Where required on ramps serving play components, the handrails shall comply with 505 except as modified by 1008.2.5.3.
EXCEPTIONS: 1. Handrails shall not be required on ramps located within ground level use zones.
2. Handrail extensions shall not be required.
Handrail gripping surfaces with a circular cross section shall have an outside diameter of 0.95 inch (24 mm) minimum and 1.55 inches (39 mm) maximum. Where the shape of the gripping surface is non-circular, the handrail shall provide an equivalent gripping surface.
The top of handrail gripping surfaces shall be 20 inches (510 mm) minimum and 28 inches (710 mm) maximum above the ramp surface.