Thickness Of Subfloor For Hardwood Flooring

The thicknesses are as follows.

Thickness of subfloor for hardwood flooring.

Cdx plywood should be a minimum of 7 16 inch thick. What are the thicknesses of subflooring. 3 4 thick solid wood flooring and most all other hardwood flooring including engineered or floating engineered wood flooring and laminate floors can be installed directly over 5 8 or 3 4 thick cdx plywood sub floors. A subfloor that is less than 1 2 inch thick will dimple or.

The subfloor provides a support. Floating sub floors floating sub floors for solid hardwood installations generally consist of two layers of plywood or allowing enough wood for a 1 inch flooring cleat to hold effectively. Tongue and groove plywood is available to reduce squeaks and help the subfloor fit together better. 7 16 15 32 and 1 2 inch thick panels require joists spaced 16 inches on center.

A smooth surface is necessary for a subfloor. Sub flooring must be installed with the strength axis perpendicular to the flooring joists. If the joists are spaced 16 inches on centers or less the minimum required thicknesses are 5 8 inches for plywood and 23 32 inches for osb. Plywood is the best subfloor for hardwood flooring installation.

Once you determine the subfloor is the proper thickness check that the subfloor is. If the spacing increases to but is no more than 19 2. Considering the fasteners are installed at a 45 degree angle or blind nailed overall thickness required runs about 5 8 of one inch. Allow for a 1 32 inch gap between subflooring panels when installing hardwood flooring to accommodate swelling with increased moisture content.

3 check before installation. 1 2 inch 12 7 mm 5 8 inch 15 88 mm. Cdx plywood ranging from 1 2 to 3 4 inch thick and rated a c will serve well for any hardwood flooring installation. Usually manufactured in 4 by 8 foot sheets plywood panels and osb are acceptable subfloors for hardwood.

Subfloor goes between the joists or boards framing the floor.