Doors connect and separate interiors and outdoor spaces as well as rooms with different functions and appearances.
According to this classification, a distinction is made between interior doors, external doors and protective or special doors. Depending on the purpose of a door, material, size, arrangement, opening, construction and their fittings are affected. There are also aesthetic and economic aspects.
Interior and exterior doors are available in a large number of colors and shapes. They can be made of plastic, wood, aluminum, steel and glass or a combination of these materials. They can either be manufactured by hand as a single piece or produced in industrial mass production.