Tile Floor Subfloor Thickness

It supports your decorative floor finish whether it s carpet hardwood vinyl laminate or tile.

Tile floor subfloor thickness.

Regardless of the material it must be at least 1. 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. Subflooring for a total plywood thickness of 1 1 4 in. Over the 3 4 in.

An extra layer of ceramic tile adds substantial thickness to the flooring layer. Tile thickness small 1 inch mosaic tiles can be as thin as 1 8 inch. 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. Medium 6 by 6 inch and 12 by 12 inch tiles are typically 3 8 inch thick.

The subfloor must be structurally sound as well as thick and stable enough to hold the weight of the tile without moving or flexing. A smooth surface is necessary for a subfloor. Plywood underlayment instead of 3 4 in. 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.

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. Preparation for installing floor tile depends on the type of subfloor in the room you are tiling. If you have a concrete slab floor the slab may be considered the subfloor.

While some consider byrne s a approach overkill for ceramic tile a more common method is to use nominal 1 2 in. 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. For more information download our pdf about types of subfloors. A subfloor is the bottom most structural level of your floor.

The subfloor is the bottom most layer and it rests on the joists. A subfloor that is less than 1 2 inch thick will dimple or cup in the middle over time. Large format tiles such as 18 by 18 inch and. However you re not out of the woods.