A C12 steel stringer connects to carrier angles sized per the fabricator, supporting a stair run with 14 gauge steel risers and 1/4 inch steel checker plate treads. The treads feature 11 inch runs and 7 inch maximum rises. A concrete slab floor on metal decking supports the top of the stair run, with details referenced on structural drawings. A steel guardrail system is anchored at the landing, featuring a handrail that returns to the guardrail.
CONCRETE SLAB FLOOR SEE STRUCT. DRAWINGS 2" SAFETY YELLOW PROTECTOR. 14 GA STEEL RISER. 1/4 STEEL CHECKER PLATE TREAD. CARRIER ANGLES PER FABRICATOR. C12 STEEL STRINGER PER FABRICATOR. STEEL GUARDRAIL; HANDRAIL TO RETURN TO GUARDRAIL. SEE A12.5 12 MAX. 7" 6 3/4" TREADS 11"
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