Architectural · A-J9WEY

Stair Handrail and Guardrail Extension at Bottom Landing

Materials

Elements

Walls Stairs Railings / Guards Floors / Slabs

About this detail

A steel stair assembly at the bottom landing features steel channel stringers and concrete fill treads with painted steel risers. A 1 1/2 inch diameter painted steel handrail is mounted 34 to 38 inches above the tread nosing, accompanied by a 42-inch high guardrail incorporating 3/4 inch diameter painted steel rods and a 5/8 by 2 inch painted steel flatbar. The handrail is detailed with required extensions including a minimum 12-inch extension plus the tread depth beyond the bottom nosing. Code compliance notes per 2016 CBC Section 1014 dictate handrail dimensions, gripping surfaces, continuity, and extension orientations.

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