One hole for lock cylinder and the other for edge of door for bolt.
How to install a door lock set.
Part of the series.
How to install a door lock door knob deadbolt.
How to install an entrance door lock.
Check the height of other knobs in the house and.
A lockset typically includes a paper template to help you accurately drill the latch and lockset holes in a new door but an optional door lock installation kit also known as a drill guide pictured at the right can make the project easier.
The two important variables when installing a lockset are the height of the knob above the finish floor and the backset the distance from the center of the knob to the near edge of the door.
8 screw latch to door edge 9 install new lockset in holes in face of door and attach with screws provided.
If necessary use tape to secure the template.
These instructions provide steps for using a drill guide.
The door locks for entrance doors are commonly designed in a very particular way.
Here s how to install a lockset.
Most knobs are positioned a comfortable 36 or 38 inches above the floor.
Install an entrance door lock.
6 set latch into hole and mark its outline on door edge.
If your new deadbolt has a concealed screw for the interior door knob consult the installation instructions for your specific lock.
4 use a 1 inch hole saw to bore latch hole in door edge.
Template will be used to locate two holes.
5 unscrew template from door.
Door window maintenance.
7 use hammer and chisel to cut a shallow mortise for the latch.