Engineered Wood Flooring On Plywood Over Concrete Slab

For a nailed down subfloor over concrete nwfa installation guidelines call for a minimum of 4 by 8 foot sheets of 5 8 inch cdx grade plywood or preferably 4 by 8 foot sheets of 3 4 inch cdx grade plywood.

Engineered wood flooring on plywood over concrete slab.

Install a subfloor solution. Consult the product data sheet for instructions regarding specific trowel requirements. Engineered wood owes its water resistance to its unique structure. Two possibilities for subfloors are plywood on slab and sleeper.

Alternatively screw rows of treated 1x4s to the concrete 16 in. Each engineered board consists of thin strips of durable wood compressed onto high grade plywood. Pass the trowel through the glue at a 45 degree angle and install hardwood flooring immediately after the adhesive is spread. These layers enable the wood to remain rigid and resist contracting and expanding when moisture is present.

In general use a notched trowel to spread the adhesive. Treated plywood to the concrete with concrete screws spaced every 16 in. A subfloor is necessary to install before the flooring can be put into place. You can t nail solid wood flooring to concrete without first installing a plywood subfloor.

Use a minimum of two layers 3 8 10 mm cd exposure 1 plywood subfloor panels cdx in 4 x 8 sheets. Lay 6 mil polyethylene sheeting over the concrete to minimize moisture migration from the concrete up into the wood flooring. A plywood core makes engineered flooring the most stable choice provided the slab is flat and dry by ken fischer issue 170 if you want to install flooring on a concrete slab your floor covering choices are limited. Plywood on slab begin by covering the slab with a vapor retarder.

Plank flooring four inches and wider requires either the plywood on slab system or the sleeper system topped with a minimum of 5 8 inch thick plywood or osb.