Our extensive selection of urethane millwork includes flat trim moulding, a basic moulding style that can be installed unadorned or enhanced with other surface elements. Flat trim moulding has the appearance of wood, but it is crafted in urethane, a durable and cost-effective choice. Flat trim moulding is precision molded in high quality polyurethane, a rigid, high-density foam material with a weight and feel similar to that of pinewood. Non-porous urethane will not warp, crack or decay like wood can. Urethane trim can be easily trimmed and altered. It is also pre-primed.