Architectural · A-J4YXX

Interior Stair Intermediate Landing Detail

Materials

Concrete Steel Metal (misc.)Gypsum / Drywall

Elements

Beams Walls Partitions Stairs Railings / Guards Floors / Slabs Reinforcing

About this detail

An interior stair intermediate landing is constructed with a structural slab supporting a one-and-a-half-inch concrete fill reinforced with wire mesh. The stair treads and landings receive scheduled finish materials per the finish schedule. A metal pipe railing system includes a one-and-a-half-inch diameter top rail, a one-and-a-half-inch diameter bottom rail, and one-inch diameter pickets spaced at four inches on center, supplemented by a wall-mounted handrail pipe where required on three-quarter-inch diameter pipe supports. Gypsum board closures and Z-shaped bars or channels frame the shaft perimeter, requiring sprayed fire-resistive material repair after framing installation.

ALIGN 1 1/2" CONC. FILL IN FIELD WIRE MESH REINFORCEMENT AS REQUIRED 3' - 6" 1 1/2 DIAM. METAL PIPE TOP RAIL 1 1/2" DIAM. METAL PIPE BOTTOM RAIL TYP. 1" DIAM. PIPE PICKET @ 4" O.C. TYP. 1 1/2" DIAM. METAL HANDRAIL PIPE 3'-0" STAIR TREAD FINISH MATERIAL, RE: FINISH SCHEDULE RT24 1 1/2" CONC. FILL IN FIELD WIRE MESH REINFORCEMENT AS REQUIRED 3'-6" 1 1/2 DIAM. METAL PIPE TOP RAIL 1 1/2" DIAM. METAL PIPE BOTTOM RAIL TYP. 1" DIAM. PIPE PICKET @ 4" O.C. TYP. 3'-0" STAIR TREAD FINISH MATERIAL, RE: FINISH SCHEDULE RT24 STAIR LANDING FINISH MATERIAL, RE: FINISH SCHEDULE RT22 SCHEDULED PARTITION, SEE PLANS SEE STRUCTURAL GYP BD. CLOSURE Z-SHAPED BARS OR CHANNELS NOM 1-1/2" x 2" - REPAIR ALL SFRM AFTER INSTALLATION OF FRAMING SUPPORT MEMBERS CLEAR STAIR SHAFT, SEE PLANS 2" STRUCTURAL SLAB SUPPORT FOR INTERMEDIATE LANDING 1 1/2" DIAM. METAL HANDRAIL PIPE WHERE REQ'D 3/4" DIAM. METAL PIPE SUPPORT 1 1/2 DIAM. METAL PIPE TOP RAIL 1 1/2" DIAM. METAL PIPE BOTTOM RAIL TYP. 1" DIAM. PIPE PICKET @ 4" O.C. TYP. STAIR LANDING FINISH MATERIAL, RE: FINISH SCHEDULE RT22 ALIGN 1 1/2" CONC. FILL IN FIELD WIRE MESH REINFORCEMENT AS REQUIRED 3' - 6" 1 1/2 DIAM. METAL PIPE TOP RAIL 1 1/2" DIAM. METAL PIPE BOTTOM RAIL TYP. 1" DIAM. PIPE PICKET @ 4" O.C. TYP. 1 1/2" DIAM. METAL HANDRAIL PIPE 3'-0" STAIR TREAD FINISH MATERIAL, RE: FINISH SCHEDULE RT24 1 1/2" CONC. FILL IN FIELD WIRE MESH REINFORCEMENT AS REQUIRED 3'-6" 1 1/2 DIAM. METAL PIPE TOP RAIL 1 1/2" DIAM. METAL PIPE BOTTOM RAIL TYP. 1" DIAM. PIPE PICKET @ 4" O.C. TYP. 3'-0" STAIR TREAD FINISH MATERIAL, RE: FINISH SCHEDULE RT24 STAIR LANDING FINISH MATERIAL, RE: FINISH SCHEDULE RT22 SCHEDULED PARTITION, SEE PLANS SEE STRUCTURAL GYP BD. CLOSURE Z-SHAPED BARS OR CHANNELS NOM 1-1/2" x 2" - REPAIR ALL SFRM AFTER INSTALLATION OF FRAMING SUPPORT MEMBERS CLEAR STAIR SHAFT, SEE PLANS 2" STRUCTURAL SLAB SUPPORT FOR INTERMEDIATE LANDING 1 1/2" DIAM. METAL HANDRAIL PIPE WHERE REQ'D 3/4" DIAM. METAL PIPE SUPPORT 1 1/2 DIAM. METAL PIPE TOP RAIL 1 1/2" DIAM. METAL PIPE BOTTOM RAIL TYP. 1" DIAM. PIPE PICKET @ 4" O.C. TYP. STAIR LANDING FINISH MATERIAL, RE: FINISH SCHEDULE RT22

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