Deadbolt locks extend through the doorframe and into the wall.
How to install door lock.
The measurement is usually 2 3 8 inches for interior doors and 2 3 4 inches for exterior doors.
Doorknob locks offer little resistance to a determined burglar and what other kind of burglar is there.
Next put a new latch in and replace the door knob.
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.
For added security take the time to learn how to install a deadbolt lock on every exterior door.
Alternatively you can buy a re keying kit for the lock you already have.
Installing a deadbolt lock is essential to protecting your home.
If your new deadbolt has a concealed screw for the interior door knob consult the installation instructions for your specific lock.
Once you have the kit remove the lock cylinder from the door knob so you can change the pins inside.