Door Pediments: Made of virtually indestructible high-density urethane our door pediments are cast from steel molds guaranteeing the highest quality on the market. High-precision steel molds provide a higher quality pattern consistency, design clarity & overall strength & durability. Lightweight they are easily installed with no special skills. Unlike plaster or wood urethane is resistant to cracking, warping or peeling. Factory-primed our door pediments are ready for finishing. Measures 20 3/4" high x overall 54 1/4" wide.