ToughRock® Span 24® Ceiling Board is a versatile ceiling covering for new building construction or renovation. It’s a cost-effective alternative to 5/8″ gypsum board when attached to ceiling joists or trusses spaced 24″ o.c. and where water-based textures are applied. Manufactured to meet ASTM C1396, sections 5 and 12, and CSA-A82.27-M, this gypsum ceiling board has a dimensionally stable, noncombustible gypsum core reinforced with glass fibers, increasing its strength and sag resistance. ToughRock® Span 24® Ceiling Board is designed for direct mechanical attachment to wood or metal framing with screws or nails, and to receive joint treatment, paint, wall coverings or textured coatings.
Specially designed for attachment to ceiling joists or trusses spaced 24” (610 mm) o.c
nominal inches: 1/2″ (12.7 mm) , ± 1/64″ (0.4 mm)
nominal: 4′ (1220 mm), 3/32″ (2.4 mm)
8’ (2440 mm) to 12’ (3658 mm) ± 1/4″ (6.4 mm)
lbs./sq. ft. nominal (kg/m²): 1.7 (8.3)1
5/16″ (8 mm)2
1Represents approximate weight for design and shipping purposes. Actual weight may vary depending on manufacturing location and other factors. 2Specified minimum values are as defined in ASTM C1396.
While gypsum boards are stronger in one direction, they may be installed either vertically or horizontally on both wood and steel studs. If the boards are to be used in a fire rated assembly, then use the board orientation that is stated in your specific rated assembly.