Take care with the marking out and drilling to ensure excellent results.
Fitting front door lock.
The distance between the edge of the door and the center of the lock hole.
Usually the backset measures 2 3 8 inches or 2 3 4 inches.
The same lock can be used in doors that open both to the left and the right.
If you don t get this precise the lock may not fit properly.
Fitting a front door rim lock fitting a rim lock the yale type lock on your front door is fairly straight forward.
A 5 lever mortice deadlock conforming to bs3621 will have the british standard kitemark engraved on the faceplate of the lock and operates the same way as a standard 5 lever mortice deadlock.
The key to success is getting the hole for the cylinder in the right position.
However if you only fit one lock make it an automatically dead locking night latch.
For front doors it is best to fit two locks a mortice deadlock about halfway up and a night latch one third of the way down the door.
5 lever mortice deadlock conforming to bs3621 more secure type of front door lock back door lock.