GLOSSARY

Backset : this term is used to explain the distance from the edge of the door to the center of the hole drilled for the knob, lever or deadbolt.
Bifold door : A door unit that consists of either one or two pairs of doors that fold in half to open
Bore : it is the diameter of the hole drilled in a door for a knob, lever or deadbolt.
Bypassing doors : A door assembly that consist of two or more doors that slide on a track
Casing : The trim round a door that covers the gap between the jamb and the surrounding wall.
Deadbolts : Locking mechanism for an entrance door or other door, in which a bolt moves with a turn of a key into a jamb. Deadbolts can be a single cylinder our double cylinder. With a single cylinder deadbolt, a key is used on one side, and is turned by hand on the other side. With a single cylinder deadbolt, a key is used on both sides.
Door handing : it's easy to figure out how a door should swing by using a floor plan of the building.
Door viewer : Item that is inserted into a hole drilled into the face of the door.
Dummy pairs are for doors where no latches are needed. These knobs or levers do not turn. They can be split up for bi-fold door set, since no hardware is needed on back of the bi-folds.
Finish opening : The dimensions from finished jamb in width, and from finished jam to finish floor in height.
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 door. They are used primarily on double doors, where one door is locked in place and the other door is the one mainly used. When needed, the door locked in place can be opened. Flush bolts can also be called slidebolts, which are mounted to the face of the door. Fluch bolts are mounted flush with the edge of the door.
Jamb : the wood that surrounds the door, and which the hinges are attached to on one side, and whtch the latch goes into on the other side of the door.
Keyways : the part of the lock mechanism where the key is inserted. Can be changed if needed for security reasons, or changed also if wanted for ease of use, where more than on lock is in existence, and you want all the locks the same key.
Knobs : round part of door handle that you hold with your hand. This can be made of brass, porcelain, steel, glass or other products.
Latch : the latch is the part of the door hardware that moves with the turn of a knob or lever. It slides into the latch plate attached to the door jamb, and holds the door shut or pens it.
Lever : A lever has the same function as a knob, except it is longer and thinner. To open a door, levers are pushed down.
Pocket door : A door that rolls on a track inside the wall.
Prehung : a door that is sold already installed in a jamb.
Rosette : plate behind lever or knobs that holds the lever or knob in place
Strike plate : Plate attached to door jamb, which receives the latch, when the knob or lever is turned, allows the door to be closed or opened.

As a rule, exterior doors should always swing into the building. Most interior doors swing into the room, unless the room is small, such as a closet or furnace room. Doors that swing out into traffic areas are dangerous.

Whether a door swings right or left depends on the traffic flow. the door should swing away from traffic. If a wall is nearby, swing the door to the wall. When you specify door handing, you can view the door from outside.

If the door swings in, it may be a right hand or a left hand door. If it swings out, it can be either a left hand reverse or a a right hand reverse swing.

To figure out the swing, imagine yourself standing in front of the door, outside the room or building. If the door swings in and opens to the left, it's a left hand swing ( it's a left hand reverse if it opens out). If it swings to the right, it's a right hand ( or right hand reverse) swing.Pairs of doors work the same, except that you also need to distinguish betwwen the active door ( the one with the lockset) and the incative door ( the one fastened at the top and bottom by flush bolts or slidebolts).