Rustic Walnut Countertops are made up of 40% Sap Wood and 60% Heart wood. These pieces are full of character. From their filled knots to their other filled texture imperfections, all pieces have tons of character. Not to mention, all the imperfections are filled, so no functionality is lost due to the rustic construction of these beautiful countertops. Due to the rustic nature of these boards, they have broad color variations that make every piece unique. No one is quite like another, making every single piece one of a kind. If you’re looking for a unique, custom piece that will turn heads, Rustic Walnut will impress.