Floor Underlayment Plywood Subfloor

Approved for use as an underlayment for carpeting hardwood and vinyl floor coverings.

Floor underlayment plywood subfloor.

The recommended thickness of the plywood subfloor is governed by the spacing of the joists. The subfloor is the bottom most layer and it rests on the joists. Plywood underlayment is typically needed when a floor material must have a very smooth flat surface. It s almost always completely hidden under some type of finished flooring material.

It is very versatile. If you have a concrete slab floor the slab may be considered the subfloor. Underlayment s special face and inner ply construction resists dents and punctures from concentrated loads. The face is generally light and even in color with small pin knots and streaks.

In fact due to the problems that edge swelling creates underneath a finished floor a couple of national ceramic tile associations have discouraged the use of osb as a subfloor or underlayment. A subfloor is the structural sheathing that spans the floor joists. These panels have been repaired and sanded on both sides. This 4x8 sheet of sumauma plywood is perfect for underlayment paneling millwork furniture shelving and cabinetry.

Underlayment covers subfloor flaws for the best possible results. Depending on when a home was built a. In most cases you will not want to use a vapor barrier type underlayment when installing laminates on a standard plywood subfloor because wood is a natural material that needs to breathe. A breathable foam type underlayment is generally used when installing laminate flooring over plywood or osb subfloors.

Cuts easily with a utility knife while strong enough to withstand extreme bending without breaking. 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. Designed as underlayment for vinyl flooring. Some experts suggest that 15 32 inch plywood should be standard if the underlying floor joists are spaced 16 inches apart or less but slightly thicker 3 4 inch plywood should be used for joists spaced further apart.

Meets the highest grading standards for strength and appearance.