Commercial Roofs
Exterior Walls & Ceilings
Interior Walls & Ceilings
Industrial & OEM
Lumber
Roof Sheathing
Specialty
Technical
Commercial Roofs
Exterior Walls & Ceilings
Interior Walls & Ceilings
Industrial & OEM
Lumber
Wall Sheathing
Base Layer: 1/4” (6.4 mm) ToughRock® gypsum board applied vertically to each side of 1-5/8” (41 mm) 25 gauge (18 mils) steel studs 24” (610 mm) o.c. with 1” (25 mm) Type S drywall screws 24” (610 mm) o.c. at vertical joints and 36” (914 mm) o.c. at intermediate studs. Face Layer: 1/2” (12.7 mm) ToughRock® Fireguard C® or 1/2” (12.7 mm) DensArmor Plus® Fireguard C® gypsum panels applied vertically to each side with 1-5/8” (41 mm) Type S drywall screws 12” (305 mm) o.c. Stagger joints each layer on opposite side.