Architectural · A-VPVDH

Suspended Gypsum Board Ceiling Master Detail

Materials

Steel Gypsum / Drywall

Elements

Ceilings Bracing Reinforcing

Connections

Bracing Connection Bolted Connection

About this detail

Main runners of one and one-half inch cold-rolled channels are spaced at forty-eight inches on center maximum. Furring channels attach to the main runners using sixteen-gauge wire with two tight turns typical at each runner. Vertical hanger wires of nine gauge are provided at thirty-six inches maximum and zero to eight inches maximum from perimeter walls and discontinuities, secured with a saddle tie wrapped with three tight turns. Splay brace wires of twelve gauge minimum are splayed in four directions ninety degrees apart, connected to the main runner within two inches maximum from cross runners and to the structure above at a forty-five degree maximum slope. Brace points are positioned at twelve-foot intervals and four-foot maximum from perimeter walls, utilizing a saddle tie to the main runner with four tight turns in one and one-half inches. Struts are notched at the main runner and secured with a one-and-one-quarter-inch diameter machine bolt twelve gauge minimum, maintaining clearance at all construction with five-eighths-inch Type X gypsum board.

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