3/4" x 4' x 8' Tongue and Groove Yellow Pine Plywood Underlayment

Incorporates both the specifications of a sub-floor and that of underlayment in a single product. The smooth, sanded surface allows for floor coverings to be installed directly onto the sub-flooring. The tongue and groove design allows for easy installation. Performs better than OSB in occasional wettings due to appliance failures and high impact and substantial loads.