Handrail Extensions [§505.10]

Handrail Extensions [§505.10]

Handrail extensions at the top and bottom must return to walls, guards, or floors and horizontal portions must comply as protruding objects. The length is measured to the start of the return radius.

Top horizontal handrail extension 12” long min. at stairs. Note: Handrails at the top of stairways must extend 12” minimum horizontally above the landing beginning directly above the first riser nosing or be continuous to the handrail of an adjacent stair flight (§505.10.2).

Bottom handrail extension sloping beyond the last riser nosing for a distance at least equal to one tread depth. Note: Handrails at the bottom must extend beyond the last riser nosing at the slope of the stair flight for a distance at least equal to one tread depth or be continuous to the handrail of an adjacent stair flight protruding objects.

Top horizontal handrail extension with P-shaped return to post; bottom edge of return is 27” high max. Notes: treatment as protruding object not required. Objects mounted on posts with leading edges higher than 27” cannot protrude into circulation paths more than 12” (§307.3). With handrails, this applies only to horizontal portions, not sloped portions. Horizontal top extensions that return to posts can protrude any amount if the leading edge is 27” max. above the finish floor or ground. Recommendation: Treat free-standing bottom extensions as protruding objects if they have leading edges higher than 27".

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