How To Install Solid Hardwood Floor Over Wood

Like unfinished hardwood floors the prefinished types typically have tongue and groove edges on all sides.
How to install solid hardwood floor over wood. When installing new wood flooring parallel to an existing solid nail down floor add a minimum of 3 8 plywood underlayment over the existing floor to increase stability. Solid wood floors should not be installed in basements or below grade. They are available in 3 4 inch thickness as well as low profile styles that are 5 16 to 5 8 inch thick which are a good or installing over existing flooring. To learn how to do this watch prepping plywood subfloors.
The type of installation you choose will depend on your subfloor budget lifestyle and the type of wood flooring you select. Check with the flooring manufacturer for recommendations.