20 in. Decorative Hand Carved Onlay (Alder) Alder Product shown unfinished 20 in. W x 0.75 in. D x 4.25 in. H Product Details Hardware Resources is proud to present the du Bois Collection of Molding and Domestic Wood Products. Each piece of du Bois molding is kiln dried until it contains only 6-8% moisture, ensuring that the molding will not swell, shrink or split when installed. Each piece is hand-fed into the saws and monitored closely as each unique profile is cut into the wood.