A. It would be risky, for two reasons, to lay the tile directly on top of the diagonally-installed wood subfloor in your bathroom. These planks were typically not tongue and grooved along the ...

The subfloor provides a base for your tiles. Take these steps to prepare your subfloor to make sure the tiles stay level and don't crack after installation.

How Mike Holmes Recommends Installing Your Subfloor Panels The Amdry subfloor panels consist of a roughly 1 inch HIPS layer and a roughly 5/8-inch OSB layer.

However, insulated subfloor paneling, consisting of OSB sheathing backed by foam insulation, is available — for a price. Particleboard is not used as frequently as the previous two options.