Providing a structural framework for hanging a door either inside or out, door fittings are essential for installing an entranceway in a home or workplace. It can be used to conceal brickwork, neaten up exposed timber and joins, or provide a border for which other decorative features can be attached. Those that are used for exterior walls come supplied with sills to protect against the elements and to improve heat efficiency. Door fittings are made from a variety of natural and man-made materials, all of which are usually prepared with anti-rot and fungus protection for a long life. Ready-to-paint and untreated options are also available, making it possible to create a unique look or complete a faster fit.