Our signs are made using commercial grade sign. Material which is 1/8 inch thick dibond material which is aluminum skins. With a pvc middle. Very durable and can be used outdoors. We create the signs to look like originals from the era. And hand age them to give them that barn find look. We have a process. That makes real rust so the aging is real and not paint. Then cleared so give them a protective layer so they will last. This sign is measures 48 inch rall.