复合门是用多种材料，通过热压或冷压或手工把多种材料粘合一起加工而成，复合门的内在品质是不相同的，可能有实木在里面也可能有很少的实木。大多数内部采用德国进口的空心刨花板、蜂窗纸，中密度板式刨花板填充。外主框架由实木，中密度板，刨花板加工而成，表面贴一层实木条。它的优点是不易开裂变形，有手感，门的款式多样化。
Composite doors are made of a variety of materials by hot pressing, cold pressing or manual bonding. The internal quality of composite doors is different. There may be solid wood in them or there may be few solid wood. Most of the interior is filled with hollow particleboard, bee paper and medium density particleboard imported from Germany. The outer main frame is made of solid wood, MDF and particleboard, with a layer of solid wood sticks on the surface. Its advantages are not easy to crack and deform, hand feeling and diversified door styles.