Can porcelain tiles be laid directly on wood?
Its not recommended, especially for plywood floors, which can become porous over time, in which case the grout may not adhere sufficiently. The answer is yes, its possible with a hard wood, but its best to consult a licensed professional tile installer to ensure that the floor is level, square, and at least 1 to 1 1/2 inches thick. Nothing will ruin your tile more quickly than an uneven floor. It could crack the tiles and/or the grout. Always place a layer of hard tile backer board. If youre tiling in a bathroom, be sure to use a water resistant level material. You want to ensure that any substrate is not going to expand or contract to any significant degree.
