Interior polystyrene crown molding is made of high density (4 pound per cubic foot) molded polystyrene. It is available in both 4' and 8' lengths. Our crown molding is the most economical high quality trim you can buy and is the easiest to install - you just caulk, press and paint. Or if you are not a great painter you can paint, then caulk and press. Either way, it goes up fast and anyone can do a professional looking job.
Our crown molding is CLASS A fire rated. ASTM E84-13a Flame spread of 5 Smoke developed 85. Made in America.