Structure: Inside component of doors. It includes stiles and core.

Door Frame: Resistant structure between the two faces along the perimeter of the door. It includes stiles and rails.

Stiles: Lateral pieces that run vertically. There is an outer and inner stile.

Rails: Horizontal pieces that form the top and bottom of the door frame.

Lock block: This piece is as thick as the door structure, next to the inner edge of the outer stile which has the handset.

Core: It is used to fill between the door pannels and stiles.

Honeycomb Core: this core has several hollow parts.

Solid Core: It is composed by a solid homogenous material.

Panel: It is made with material such as veneer, fiber, particle board or hard wood. It forms the faces of flush doors, also known as door skins.

Edge: Narrowest flat surface of the door face and it is the stile finish.

Smooth edge: Smooth vertical edge of the door face.

Bevel: Door edge at a 90º angle with its face.

Primer: Application of a coat to door so as to obtain a better finish and seal.

Door Jamb: It is fixed to a wall with screws, and the door is hinged to it.

Opening sweep: This depends on which side the door has the hinges, the person is on the outside and is looking at the door.

Vent: It's used for ventilation. The vent is included in the bottom part of the door.

Glass cutout: This cutout is left in the door in order to install glass to let light in or to see through.

Molding: Piece made based on a specific profile which is placed on the door surface.

Overlap: This refers to the rebated edge of the door faces in order to close properly. The overlap can be a right or left rebated edge.

By-pass door: refers to a door that swings from side to side.

Door post: Support system for a by-pass door.

Opening: This is the gap in a wall where the door is installed.

Special router: It’s a groove on the exterior door skin cut with a cutter, which can be curved or straight.

Routed: Router-carved molding done mechanically with a router.

Clearance: Distance between two elements so that the door opens properly, ie., the space between the dry wall and the door jamb or also between the door jamb and the door edge.

Top Transom: Fixed top flush (on the door) which has a frame (extension) and a glass piece or panel skin; it is also considered as part of the same door that can be attached an overlap, it is the part that stays fixed when the door is opened.-