HardieBacker Cement Board for Walls 1200 x 800 x 12mm Hardiebacker - Protect your work with the easy to install fibre cement tile backer board famous for its strength, mould and water resistance. Use the durable, mould and water-resistant alternative to plasterboard for tiling on walls. Our 12 mm thick cement backerboard with MouldBlock Technology for tile and stone doesnt swell, rot or warp, so that your tiling work stays put. HardieBacker 12 mm is strong: boasting the highest flexibility and up to 3x the compressive strength compared to competitive boards. HardieBacker fastens directly to any floor, wall or wooden frame and lines up perfectly with any dry wall, making it particularly quick and easy to install. Use HardieBacker 12 mm on the floor when additional height is needed. Its fire resistant properties also make it the ideal choice of wall panelling behind a boiler, or even behind a multi-fuel or wood-burning stove. 90% Portland cement and sand No loose aggregate or filler High