Typically, a composite door is made up from a combination of materials. Cheaper composite doors on the market can be made of materials such as UPVC, foam and mixed species softer timbers. The Endurance composite door is far superior in it’s composition than other doors on the market. It has a 48mm Kerto LVL timber, making it up to 10mm thicker than most other composite doors. Comprising of 17 cross layered laminations, the core of the Endurance door offers unrivalled strength and security.