How Thick Of Concrete Backer Board For Tile Floors

Cement fiber or similarly reinforced backer board comes in standard 1 4 inch and 1 2 inch thicknesses.

How thick of concrete backer board for tile floors.

If the subfloor doesn t have enough stability you can usually but not always remedy the situation by installing cement backer board also called cementboard. Cement boards generally come in 1 4 inch 1 2 inch and 5 8 inch thicknesses. I d like to get as close as possible to matching the height of the existing tile. For flooring the backer board should be installed over a 5 8 inch thick osb or plywood base.

When installing a ceramic tile floor on a concrete subfloor you don t have to worry about flexing as long as the concrete slab is at least 1 1 8 inch thick which most slabs are. Half inch cement backer board is ideal for most tiling jobs including walls floors countertops and ceilings. It s typically available in 1 2 in. On top of the 2 6 will be 3 4 subfloor thinset cement board redgard thinset tile.

Thick 3 x 5 ft. Its made from cement and sand and is reinforced by fiberglass mats on both sides so it s impervious to water. If you re installing backer board over an existing subfloor 1 4 inch is sufficient.