American Building Supply Z-barn door 36-in x 84-in Clear Z-frame Stained Knotty Alder Wood Single Barn Door (Hardware Included)Engineered all wood stiles and rails with dowel pinned stile and rail joinery Engineered with the strength and stability of classic wood stile and rail construction All stile and rail joints are secured using dowel pins and each fluted dowel is glued securely into the bore within both the stile and rail components ensuring a secure, flush joint, and beautiful appearance The timeless look of a classic barn door combines practicality and aesthetics