Tile Floor Subfloor Thickness

While some consider byrne s a approach overkill for ceramic tile a more common method is to use nominal 1 2 in.

Tile floor subfloor thickness.

Plywood underlayment instead of 3 4 in. For more information download our pdf about types of subfloors. Preparation for installing floor tile depends on the type of subfloor in the room you are tiling. The subfloor is the bottom most layer and it rests on the joists.

Typically made of plywood or osb and ranging in thickness from 19 32 to 1 1 8 thick the subfloor is truly structural second only to joists in this respect. A smooth surface is necessary for a subfloor. Concrete expands and contracts and that type of movement can also crack the tiles and the grout. Over the 3 4 in.

It supports your decorative floor finish whether it s carpet hardwood vinyl laminate or tile. Large format tiles such as 18 by 18 inch and. In this scenario jim and rich install 1 2 cementious backer unit cbu resulting in at least an 1 1 8 thick subfloor. Those changes in the subfloor will cause problems for the actual flooring especially for vinyl or tile.

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. A subfloor is the bottom most structural level of your floor. An extra layer of ceramic tile adds substantial thickness to the flooring layer. The subfloor must be structurally sound as well as thick and stable enough to hold the weight of the tile without moving or flexing.

Subflooring for a total plywood thickness of 1 1 4 in. However you re not out of the woods. Tile thickness small 1 inch mosaic tiles can be as thin as 1 8 inch. A subfloor system that worked fine for a single layer of ceramic tile may not be strong enough to handle the many hundreds of extra pounds added when a second layer is added.

Tile over wood subfloor plywood and osb are the two most common materials used for floor decking and typically they are 5 8 or 3 4 thick. The subfloor under the tile should be at least 1 1 8 thick with a minimum of 5 8 thick exterior grade plywood topped by 1 2 cement backer board. Diamond tipped blade the diamond grit bonded to the edge of these steel blades lasts up to 30 times longer and cuts twice as fast as carbide grit. Regardless of the material it must be at least 1.