cement board installation cabinet 1 4 or 1 2 cement board for tile floor is 1 2 inch cement board better than 1 cement board installation on floors 5 cement board installation cabinet install cement backer board on a cement board installation on floors 5 cement board densshield tile backer board 1 4 and usg durock brand 1 2 in x 4 ft x 8 ft install harbacker cement board 8x2 1 4 in bugle hd fiber cement bd usg durock brand cement board with