Door support is an important part of any door, and it consists of two components: a HINGE and a JAMB. A HINGE is a mechanical device that connects two objects together and allows them to rotate relative to each other. It is usually made of metal and is attached to the door frame and the door itself. A JAMB is a vertical piece of wood or metal that forms the side of a door frame and provides additional support for the door. It is typically attached to the wall and the door frame. Together, the HINGE and JAMB provide the necessary support for a door to open and close properly.