Designed for interior ceilings where there is a demand for sag resistance.

CertainTeed Interior Ceiling Gypsum Board consists of a solid set, fire-resistive gypsum core enclosed in ivory-colored face paper and a strong liner back paper, for use on interior ceilings where framing is spaced up to 24" (610 mm) o.c. Gypsum core is comprised of special sag-resistant additives.