A mortice latch is the most common of door furniture being fitted to internal and external door alike.
How to fit a lock on an internal door.
Either replacing a mortice lock or fitting one on a brand new door is a task that might be a little beyond the reach of your average diy enthusiast.
Then line up a combination square with the old door s hinge mortises and transfer their locations to the new door marking the edges with a utility knife.
Turn the key so the locking bolt protrudes from the lock and hold the door against the door frame.
Unlike other door sets everything is already done for you.
Mark out your hinges on the door.
Use a sharp pencil to mark lines on the door frame at the top and bottom of the.
After you ve fitted the lock in the door you need to fit the strike plate to the door frame.
Shake the door a bit to make sure it is secure.
The easiest way to do do this if the old door was a good fit is to lay the new door on top of the old door so the edges are flush.
Latches for interior doors come in different finishes and in different sizes ordering a 65mm latch for a ball type handle is the wrong thing to do and equally ordering a 100mm latch for a ball handle should be carefully thought out for example check that the longer latch will fit the stile side rail of the door.
Each internal doorset comes with the lining and architrave which is then slotted in to a pre cut section with a fitted handles and lock option.
The whole unit is simply fitted into the door opening by fixing with low expanding foam or silicone.
To hold the door closed the catch of the mortice lock sits in a keep that is fixed to the door frame.
First mark out the place where the strike plate has to be fitted.
It is simply a catch that holds the door closed with a handle either side to open and close it.
Place a wedge at the bottom of the door to keep it in place.