Ceramic Tile Over Wood Subfloor Installation

A plywood subfloor must be structurally sound and able to support the installation.

Ceramic tile over wood subfloor installation.

If you must install over such surfaces it is best to install a backer board over the old surface and install the tile on the backer board. If installing over an appropriate wood surface sand the wood to make it smoother and remember that the installation will work better over a subfloor at least 1 1 8 inches thick. First changes in humidity make solid wood shrink swell and cup more than plywood. Lay down inch exterior plywood the opposite direction and screw to the inch.

The 2 3 s would be standing up on their side so. According to backer board manufacturers and tile setters installing backer board directly over an old solid wood subfloor is risky for a couple of reasons. Tile floors are heavy and tile is a hard material. Cement backer board can provide a solid flat surface to install tiles on if you have a wood subfloor.

Second the strength of wood boards isn t always consistent. Tile can be installed over a plywood substrate and it is actually a fantastic way to make sure you don t have deflection in your floor. Use intervening layers of two sheets of plywood. Hope you didn t like your beautiful new tile floor.

While tile can be laid on plywood do not install tile directly onto the plywood subfloor itself. Lay down inch exterior plywood and screw into the 2 3 s every 8 inches.