Architectural · A-72M5C

Suspended GWB Ceiling

Materials

Steel Gypsum / Drywall

Elements

Walls Partitions Ceilings Bracing Reinforcing

Connections

Rebar Splice / Development

About this detail

A suspended gypsum board ceiling assembly is supported by 1-1/2 inch hot-rolled channel main runners with a minimum weight of 1.12 lbs/foot. Vertical hanger wires of 8 gauge feature a saddle tie with a minimum of 3 tight turns at both ends, spaced a maximum of 8 inches from scheduled partitions. Main runner splices require a minimum 12-inch lap and interlock of flanges tied near each end with double loops of 16 gauge wire. Cross runners are saddle-tied to the main runners using 1 strand of 16 gauge or 2 strands of 18 gauge tie wire. Cross runner splices require a minimum 8-inch lap and interlock tied near each end with double loops of 16 gauge wire. Surface-mounted fixtures must attach to main runners using a positive clamping device made of minimum 14 gauge material, excluding rotational spring clamps. The suspended drywall ceiling bracing assembly complies with DSA IR 25-3, ASTM C-635, and ASTM C-636.

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