Architectural · A-Y36MT

Typical Stair Tread and Riser Assembly

Materials

Elements

Stairs Floors / Slabs Connections / Plates Reinforcing

About this detail

Metal stair pans feature a smooth finish with fiber-reinforced concrete fill at treads and landings, supported by steel channel stair stringers. Steel angles are provided typically at each tread, secured with clip angles. Riser configurations include perforated riser pans with staggered quarter-inch round holes at stair one and solid risers at stair two. Dimensions indicate a typical eleven-inch tread depth, a one-inch nosing projection, and a four-inch maximum opening constraint. The adjacent floor slab connects to the support framing as detailed on structural drawings.

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