If it is not possible to use a mortise lock you can fit a rim lock which is mounted on the surface of the door.
How to fit a cylinder door lock.
Measure the size of the old cylinder.
Make sure you use the correct size.
This may be the case for example with a door that is less than 40 mm thick.
Put it over the mounting plate so that you can pencil around the overhang.
You ll now need to chisel out a recess for the lock to.
Select a lock with the same setback.
Remove the old cylinder from your door.
Push the cylinder out of the lock maybe you need to push hard step 2.
Open front door to reveal the face of the lock.
The handedness of most locksets can be changed by using an included tool.
Watch our step by step video showing how to change a euro lock cyliner with expert advice and top tips to help you complete the job with confidence.
A cylinder lock has a latch which automatically engages into a keep when the door is closed.
To avoid splintering as the drill passes through the thickness of the door to the other side hold a block of wood on the opposite side of the door to allow the bit to drill into it on the other side.
A new cylinder lock will usually come with fitting instructions and a template for marking the door but if you want to know how to go about it simply follow these steps.
Using the body of the lock as a template mark the.
And if you want extra added security consider electronic door locks or even smart locks.
Drill the cylinder hole by using an auger or expanding drill bit.
To fix this add a custom cut plate or a door reinforcer.
You ll then be able to screw the cylinder to the mounting plate.
With a thin door like this the recess for a mortise lock would weaken the door structure too much.
Fitting sizes should be printed on the instructions that come with the lock.
Next is to mark the lock body.
The cylinder should be inserted through the face plate and the back plate mounted on to the back of the door.