DensShield 0.49-in x 47.9-in x 95.9-in DensShield; Tile Backer Gypsum Backer BoardIdeal for high moisture areas like bath tubs and showers Acrylic coating serves as a moisture barrier Mold resistant Lightweight and easier to install than cement board Excellent for tile and non tile installations in wet and non wet applications Backed by a lifetime limited warranty for residential applications Georgia Pacific Gypsum offers a limited warranty Features Series Name DensShield Tile Backer Material Gypsum Common Measurement (W x L) 4 ft