Steel-Framed Wall

Base Layer: 1/2” (12.7 mm) ToughRock Fireguard C or 1/2” (12.7 mm) DensArmor Plus Fireguard C gypsum board applied vertically to each side of 2-1/2” (64 mm) steel studs 24” (610 mm) o.c. with 1” (25 mm) Type S drywall screws 24” (610 mm) o.c. Face Layer: 1/2” (12.7 mm) ToughRock Fireguard C or 1/2” (12.7 mm) DensArmor Plus Fireguard C gypsum board applied vertically to each side with 1-5/8” (41 mm) Type S drywall screws 12” (305 mm) o.c. Joints staggered 24” (610 mm) each layer and side. Sound Tested with 2-1/2” (64 mm) fiberglass insulation stapled in stud space

Hourly Rating: 2-hour
STC Rating: 50-54 STC
Fire Test Reference: ULC W414, GA WP 1546
Sound Test Reference: NRCC 798-NV
Approved for Assembly:
ToughRock® Fireguard C® Products
DensArmor Plus® Fireguard C® Products