A butt hinge is a type of hinge commonly used in doors and cabinets. It consists of two plates, or leaves, that are attached to the door and the frame. When the door swings open or closed, the leaves pivot around a central pin, allowing smooth movement. Butt hinges are typically made of metal and come in various sizes and finishes to match different styles. These hinges are often preferred for their strength and durability, making them suitable for heavy doors. They can be installed in various orientations, including mortised or surface-mounted, depending on the design requirements of the door or cabinet.