Material meets the requirements for non-combustibility in accordance with ASTM E-136. High definition, crisp details. Fast, easy installation. Material is sealed from the factory and requires no further finishing. Supplied in 3 pieces.Complete Overmantel Weight: 40 lbs Crated Weight: 45 lbs Number of Pieces: 3 Overmantel Header Projection: 4 1 2 Overmantel Header Weight: 20 lbs Overmantel Header Width: 74 Overmantel Leg Weight (Each): 10 lbs Overmantel Leg Width: 7 Overmantel Projection: 1 1 2 Overmantel Width: 69 7 16 Overmantel with Header Height: 52