Basically, a door consists of two parts: (i) door frame, and (ii) doorshutter. The door shutter is held in position by the door frame which in turn is fixed in the opening of the wall by means of hold-fasts etc.
Door Frame: The doorway consists ofan assembly of horizontal and vertical members, forming an enclosure, to which the shutters are fixed. It has two vertical jambshead jamb at the top, and perhaps a threshold at the bottom. The vertical jambs that form the sides of a door frame, is where the hinges are mounted, and with which the bolt interacts. Lintel- A horizontal beam above a door that supports the wall above it. Sill- A horizontal beam below the door that supports the frame Architrave- The decorative moldingthat outlines a door frame.
Door Shutter: These are the openable parts of a door. It is an assembly of styles, panels and rails. When a door has more than one movable section, one of the sections may be called a leaf. The attachments to doors are door handles and doorknobs. The Top rail - is the top most horizontal member of a shutter; Lock rail - is the middle horizontal member of a door shutter, to which locking arrangement is fixedand Bottom rail is the lowermost horizontal member of a shutter. Panel - This is the area of shutter enclosed between the adjacent rails. Mullion -Doorstop - a thin slat built inside the frame to prevent a door from swinging through when closed, which might break the hinges.
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