Devices that allow to fix the door to the door frame and prevent penetration of the room without a key. Depending on the installation method distinguish padlocks, mortise and others.
Elements of door accessories, serving for convenience of opening and closing the door. The handle can be part, through which driven a latch, and may be a separate element that is not related to other door mechanisms.
Door furniture - a door structural elements used to improve its functionality or appearance. There are elements such as closers, protectors, eyes, hinges and more.
Additional elements for operation of doors, windows and furniture.