Architectural · A-J3B9C

Stair Tread Nosing and Handrail Clearance Details

Materials

Elements

About this detail

Accessibility and safety requirements for stairs and handrails, including closed risers, slip-resistant treads, and a 2-inch wide solid color contrast striping on tread edges. Handrails must maintain a gripping height of 34 to 38 inches, extend 12 inches minimum past the top and bottom of the stair run, and return to the wall or terminate in a newel post. Nosings are restricted to a maximum 1 1/4-inch projection with a maximum 30-degree bevel angle, while the radius of curvature at the leading edge cannot exceed 1/2 inch.

Members view this detail in full resolution, download the CAD files (SVG, PDF), and can adapt it in the built-in CAD editor — export DXF, DWG, or PDF.

Start membership

Similar details