Architectural · A-4HM6M

Central Stair Stringer with Glass Guardrail and Precast Tread

Materials

Concrete Steel Stainless Steel Glass / Glazing Metal (misc.)

Elements

Facades / Cladding Stairs Railings / Guards Ceilings Connections / Plates

About this detail

A central stair stringer assembly supports precast treads surfaced with porcelain tile set on mastic and a setting bed, with sealant applied between the tile and steel stringer. A 4-inch by 1/2-inch painted steel bottom plate finishes the stringer assembly, which connects to steel risers and steel support angles. A glass guardrail with a 1/2-inch thickness is secured by stainless steel glass rail bottom supports and capped with a typical stainless steel channel. A 1-1/2-inch brushed stainless steel handrail is mounted to the glass with a stainless steel handrail support, maintaining a 1-1/2-inch minimum clearance. Below the stair, an acoustic metal panel ceiling on suspended supports encloses sound absorbing batts, with a fire sprinkler lateral located as required.

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