v D
Deadbolt:A latch used to secure a door closed, the latch being driven from the door into a receiver in the jamb or frame.
Deadbolt Spacing:The distance between the cylinder lock to the bore for the deadbolt lock.
Door Hand:The door hand is the description of which side of the door the lock-set is on and consequently, which side of the door has the hinge pins visible.
Double-Glazed:Outfitted with two panes of glass with a sealed airspace between.
Drywall Opening:A rectangular opening in a wall, usually an interior wall, prepared to the size @necessary to receive a pre-hung door assembly.
Dummy Cylinder:A lock without a latch, typically used for the passive door panel of a double door unit, so that the hardware appears equal to that used on the active panel.