A door frame is the structure that surrounds and supports a door. It typically consists of vertical pieces called jambs and a horizontal piece known as the lintel or head. The door frame provides stability and helps to secure the door in place, allowing it to open and close smoothly. In addition to its structural role, the door frame also plays a part in the overall aesthetics of a room. It can be made from various materials, such as wood, metal, or composite, and can be designed in different styles to match the interior decor. Proper installation of a door frame is essential for functionality and security.