Thickness Of Subfloor For Hardwood Flooring

Cdx plywood should be a minimum of 7 16 inch thick.

Thickness of subfloor for hardwood flooring. Subfloor goes between the joists or boards framing the floor. Sub flooring must be installed with the strength axis perpendicular to the flooring joists. 7 16 15 32 and 1 2 inch thick panels require joists spaced 16 inches on center. Usually manufactured in 4 by 8 foot sheets plywood panels and osb are acceptable subfloors for hardwood.

The thicknesses are as follows. Tongue and groove plywood is available to reduce squeaks and help the subfloor fit together better. 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. 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.

A subfloor that is less than 1 2 inch thick will dimple or. If the spacing increases to but is no more than 19 2. 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. A smooth surface is necessary for a subfloor.

Cdx plywood ranging from 1 2 to 3 4 inch thick and rated a c will serve well for any hardwood flooring installation. Thoroughly vacuum the existing floor and use a long level and tape measure to ensure the subfloor is level within 3 16 inch for every 10 feet. 1 suitable wood flooring. Once you determine the subfloor is the proper thickness check that the subfloor is.

1 2 inch 12 7 mm 5 8 inch 15 88 mm. What are the thicknesses of subflooring. Considering the fasteners are installed at a 45 degree angle or blind nailed overall thickness required runs about 5 8 of one inch. 3 check before installation.

Nail down or floating floors may be installed over existing vinyl as long as it is no more than two layers thick.