I:N-Cardea Industries
PO Box 845147
Boston, MA 02284
Phone: 888-435-3301 Fax: 401-334-4667
Door Glossary

Active Door - The door people use every time they enter or leave a building. When there are double doors, it is the door that opens with an entry set knob.  The other door is called the inactive door and opens when the flush bolts are released.

 

Antique Brass - Finish on hardware that has a brown color

 

Backset - The distance from the edge of the door to the center of the hole drilled for entry set knob, lever or deadbolt.

 

Bore - The diameter of the hole drilled in a door for an entry set know, lever or deadbolt.

 

Brickmold - Exterior trim that covers seams between jamb and wall.

 

Casing - Interior trim that covers seam between jamb and wall.

 

Cylinder Bore - Refers to the machining  procedure that requires a round hole to accommodate a standard entry set.

 

Deadbolt - Locking mechanism for an entrance or other door.  Deadbolts can be single cylinder or double cylinder.  With a  single cylinder deadbolt, a key is used on the outside and is turned by hand on the inside.  With a double cylinder deadbolt, a key is used on both sides.  Double cylinders are only recommended where no one needs to go through a door in case of an emergency.

 

Frame - The set of jambs that holds the door unit together.  The door is pre-hung in the frame.

 

Flush Bolts - Bolts mounted in a door to lock a door in place.  These bolts slide up into the jamb above the door and down into the threshold or floor below the door.  They are primarily used on double doors where one door is locked in place and the other door is the mainly used (active door).  When needed, the door locked in place with the flush bolt can be opened.

 

Hinges - The metal objects that attach your door to the jamb, normally with screws.  They can be made from brass, steel, iron or other metals.

 

Inswing - When the door opens into the house when opened

 

Left-Hand - Term used to describe which way a door is hung on the jamb.  As viewed from the outside, the side the hinges are on and the door swings into the building.

Lever - Has the same function as a knob, except is longer and thinner.  To open a door, levers are pushed down.  Beside the decorative uses of a lever, they are also used in applications where someone is handicapped and cannot grasp a knob very well.

 

Machining - The preparation for the entry set so that it will operate properly in the door.

 

Mortise - An elaborate machining process for special entry sets called a mortise lock.

 

Mullcap - Interior and exterior trim for seam between door and sidelight.

 

Muntons - Trim that holds panels of glass in the door which makes a style of a French door, such as five light, ten light, etc..

 

Outswing - When the door swings to the outside of the building when opened.

 

Pre-Hang - Doors or combinations of doors and sidelights put together with jambs, hinges, threshold, T-Astragal, and trim to make a total working door system ( a unit).

 

Right Hand - Terms used to describe which way a door is hung on the jamb.  As viewed from the outside, the side the hinges are on and the door swings into the building.

 

Rough Opening - The opening for your door and /or sidelights before any framing materials have been applied

 

Sidelight - Fixed panel of wood/metal and glass next to the door.

 

Slab - Door only or sidelight only.  No frames, jambs or parts added to make door operate.

 

T-Astragal - Vertical piece of wood/metal attached to the inactive door of a double door unit.  It houses the flush bolts.

 

Threshold - The part of the door unit which is attached to the floor under the door.

 

Transom - Fixed window light mounted in the wall above the door.