A steel guardrail assembly incorporates a handrail designed to return into the guardrail. The handrail sits at a height of three feet six inches above the finished stair tread, with a clear projection of one foot zero inches from the stair framing. The stair construction consists of concrete-filled metal deck supported by structural steel framing. Vertical dimensions indicate a three-foot clearance to the top rail and one foot nine inches to the intermediate rail zone.
1'-0" 3'-6" 1'-9" 3'-0" STEEL GUARDRAIL; HANDRAIL TO RETURN TO GUARDRAIL. SEE A12.5 12
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