Steel stair stringers bear above a concrete apron, with bar grating treads spanning between them. A closure plate is anchored to the concrete using one-half-inch diameter expansion bolt anchors. A maximum seven-inch riser height is maintained.
7" MAX. CONCRETE APRON SEE CIVIL DRAWINGS CLOSURE PLATE WITH 1/2" DIA. EXPANSION BOLT ANCHORS STEEL STRINGER BAR GRATING TREADS 1" 1'-0"
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