Create a fantastic space by installing one of our 7″ Unfinished Brazilian Walnut floors. Each of these Engineered floors have a extra thick 4mm Wear layer for better durability. You can order this Clear Grade wood in a variety of standard lengths as well as in a several extra long length options. This 5/8″ wood has Tongue & Groove milling on the Sides and Ends for a secure fit during and after installation.