The key to an easy entry upgrade is finding a handle and lock assembly that lines up with your door s existing drill outs.
Installing new locks on old doors.
If you re installing a lockset in an existing door take out the old lockset and measure the backset the distance from the door edge to the center of the lockset hole.
Transfer the 10 inch reference marks you made above from the old door to the new one.
Follow these guidelines to ensure that your new set will be a perfect fit.
Here this old house master carpenter norm abram shows how to install a lockset.
If your new deadbolt has a concealed screw for the interior door knob consult the installation instructions for your specific lock.
A door lock installation kit or drill guide pictured above simplifies lockset installation.
1 remove the existing door lock from the door if there is one.
If you re replacing a lockset or installing a new one in a pre drilled door the installation shouldn t take more than 15 or 20 minutes.
Drill the edge bore hole for the latch with a 1 inch hole saw.
Swapping out an old lock for a new one will only take a few minutes and will help to provide peace of mind in your new home.
How to install a door lock door knob deadbolt.
The measurement is usually 2 3 8 inches for interior doors and 2 3 4 inches for exterior doors.
Insert the lockset tailpieces through the latch bolt and screw the handles together by tightening the retaining screws.
A tubular lock which installs in two holes in the door and a mortise lock which goes in one hole.
Avoid damage to the screws by using a hand screwdriver.
Set the old door aside.
If you need to drill the holes give yourself an hour or two.
If you re in a situation where you cannot or do not want to use a drill to install your lock there are a couple ways of installing an interior door lock without a drill.
There are two options.
Step 1 installing a lockset.