Ekena Millwork CRH06X40KA 40" Bottom Width x 43 1/2" Top Width x 6"H x 1"P Crosshead w/Deco Keystone Comes factory primed and ready for your paint or stain Easily install it with fully bonded adhesive or nails Moisture, rot and termite resistant, making it perfect for exterior and interior applications Composed of high-density polyurethane, making it a durable yet lightweight product Customize with keystones, pilasters and pediments for an extraordinary look