Plywood Thickness For Bathroom Floor

The finished floor is then installed on top of the subfloor.
Plywood thickness for bathroom floor. Item 12182 model 231331. The floor must also handle the weight of the tub shower tiles and other fixtures. The bathroom floor gets wet. That usually means the underlayment and the subfloor also get wet.
Tile floors are especially heavy with layers of cement board mortar tile or stone and grout. The minimum thickness allowed for ceramic tile installations is two sheets of 5 8 inch thick plywood. 23 32 cat ps1 09 tongue and groove douglas fir subfloor application as 4 x 8. The national wood flooring association recommends a minimum plywood panel thickness of 7 8 inch for joist spans of 19 2 to 24 inches and a minimum plywood panel thickness of 5 8 inch for joist spans of 16 inches or less.
The recommended thickness of the plywood subfloor is governed by the spacing of the joists. If your plywood subfloor is too thin it might not cope with the load and it might creak or squeak when you walk on it. Plywood makes up most of the walls and floors in attics and are sometimes found in laundry rooms closets and other unfinished areas in the home. The subfloor is the decking installed on top of flooring joists.
The plywood must be exterior grade for all wet areas and it has to be installed in such a way that the joints between each layer do not line up using what is known as a stagger pattern to keep the pieces from ever lining up. Using the right type plywood ensures a long lasting floor. The thickness of plywood panels in a subfloor is regulated by the.