Cast-in-place concrete stair assembly with a landing and a 1-1/2-inch diameter pipe handrail. The handrail mounts 34 inches above the stair nosing and landing surface, with all welds ground smooth. The stair configuration includes 4-inch and 7-inch risers, with 12-inch flat runs at the top and bottom of the stair flight. The assembly is dimensioned for a maximum 6-foot run and includes a 42-inch guardrail height requirement.
20 AD-1 12" FLAT RUN 6'-0" MAX. 1-1/2" DIA. PIPE HANDRAIL - GRIND ALL WELDS SMOOTH CONC. LANDING 12" FLAT RUN 11" 3" 4"-7" RISERS 42" 34" 34" 8" 34"
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