What Size Cement Board For Tile Floor. Both 14- and12-inch cement board are appropriate for floors. In these cases follow the manufacturers minimum requirements.
1197 piece Hardiebacker Backer Board 14in. Larger 4 x 8-foot panels are also available but their weight makes them hard to manage for DIYers. Before you get started you should determine if your floor is suited to HardieBacker Cement Board.
For flooring or wall installation some builders choose to apply a thin layer of thinset mortar under the cement board to prevent any shifting or expansion.
Even if you use this extra. A 3 x 5 panel of 14-inch cement board weighs about 30 pounds. Its available in sheets of many sizes with 3-foot by 5-foot sheets being the most common for most projects. After you have decided on the thickness and purchased your cement backer board spread adhesive on both the plywood subfloor and the one side of the cement board.
