To install this lock see section 4 below.
Fitting a mortice lock to a rebated door.
When the door needs to be opened a door handle or sometimes a knob is turned which in turn is attached to the latch via a door bar or door spindle that runs through the latch.
When possible fit two locks on your front door both to bs3621 standard.
Mortice latch or tubular door latch showing the latch casing the catch and door handle spindle insert.
The second important part of this how to is to buy a rebate kit.
The fitting instructions supplied with a mortice lock will normally specify the thickness of door it is designed for problems will arise if a mortice lock is fitted to a door thinner than it is designed for.
Unlike a normal door where you would fully recess the latch into the door and it would close against a frame with a rebated double door like ours the latch actually needs to sit partly out from being fully inside the door.
Position a mortice deadlock about halfway up the door and fit a night latch on your front door one third of the way down.
Easy to follow instructional video on how to install a mortice lock in rebated double timber doors.