M-D Building Products 11908 M-D Flat Door Threshold, 2-1/2 in W X 36 in L X 3/8 in H, Tan/Oak, 2-1/2", Natural Natural wood provides an ideal thermal barrier Solid hardwood for beauty and durability Easily stained or painted to match floor or door trim Seals gaps up to 5/16 inch high 2-1/2-inches wide by 3/8-inch high by 36 inches long