Natural Spalted Maple, a take on a unique wood in which a fungus grows in the grain, creating dramatic dark streaks through the yellow-to-brown toned wood. Product Number: 56013L Colorway Name: Natural Spalted Maple Quality Rating: Better Edge Style: Square Edge Sizes: 7 9/16" x 50 5/8" Thickness: 5/16" Recycled Content: Yes FloorScore Certified: Yes Warranty: 25 Year Installation Type: Click System