What is a bore hole on a door?
Bore holes are the holes in the door that house your door hardware and allow it to be installed. The cross bore is the main hole drilled into the face of the door where the body of the lock (chassis) is installed.
How many bore are used on front door?
Most doors have one, two or three bore hole. If the door has no bore holes, you can simply install a non-turning or “dummy” knob or lever that serves as a decorative door pull.
How high is a doorknob?
Given that most contractors install the doorknob around 36 inches from the floor, a deadbolt should be positioned somewhere around 42 inches to 46 inches off the floor. Most homeowners split the difference and install it roughly 44 inches from the floor.
What does a door latch go into?
The latch is the mechanism that slides into the enge of the door and retracts or protrudes with the turn of the door knob. The latch keeps the door closed and when the knob is turned allows the door to open.
How do I know what size door lock I need?
Measure from the outside edge of the door (including furniture) to the centre of your door. This is dimension A and is called the External Size to Centre. Next, measure from the inside edge of your door (including furniture) to the centre of your door to find dimension B, the Internal Size to Centre.