1/2 in. x 4 ft. x 10 ft. Gypsum Drywall Panel has a core of noncombustible; dimensional stable gypsum rock sandwiched between a face layer of 100% recycled ivory coloured paper and a brown-back paper. The face paper is formed along each edge, wrapped around and sealed to the brown paper on the back side. This produces a strong yet flexible panel in convenient width and lengths to meet most commercial/residential construction requirements for wall and ceiling substrates.