Hurst Composite doors are made from a variety of different materials to ensure quality, strength and security of the highest standards. These materials are specifically selected for their properties, helping to keep your home safe and secure.\r \r These materials include:\r \r A dedicated PVC-U outer frame; a composite PVC-U sub-frame and an inner-frame made from laminated veneered lumber\r A CFC-free polyurethane (PU) foam core\r A weather resistant, 4mm Glass Reinforced Polyester (GRP) grained surface