HeleH Italy simple guide to fitting home/ business door lock

Description: Fitting door lock sometimes is very difficult for homeowners. Don’t worry, HeleH Italy will help you with easy step-by-step guide on how to fit! Good luck for you and your lock.

Common seven steps to fit door lock by yourself

Selecting the direction of the opening

The first thing that you need to do is to choose the direction of the opening. At the side of your door lock, you’ll find a small pin pushed upwards using a narrow screwdriver. When the latch falls forward out of the lock body, you can turn it around. This is to face a different direction and then push it back into place.

Finding the height for the lock

Mark out the position that you prefer for the top part and bottom part of the lock on the left or right side of the door. Once done, extend the mark to the edge of the door and then mark out the top and bottom of the lock on the door edge. Place the door lock on the center line and mark the shape of its body. This will be the best guide on where the recess should be cut in the door edge.


Picture 1: Finding door lock height is just one of the first steps to do before fitting it!

Drilling out the recess

Measure the depth of the lock body with the retaining plate is very important step. Set the depth stop of your drill with an extra 5 mm for allowance of entrance. You can use the marked outline to stay within the outline. After cutting the recess with the drill, you can now use a chisel to complete the edges in a straight line.

Marking out the retaining plate

Create an outline of the retaining plate’s edge using a pencil in your home. After that, use the chisel to make a cut-out for the retaining plate. Ensure that it has at least 3mm depth to let the retaining plate to fit it properly. The retaining plate’s outer face should be flush with the door lock edge.

Marking out an area for the door handle

Hold the lock’s body against the door’s front side. Create an outline where the hole needs to be made using a pencil. Next, use an awl to use as a guide before starting hole for drilling. Make sure that you are using a drill bit that will let the door’s spindle to turn freely.


Picture 2: Door lock fitting consists of many easy steps that you can do without of locksmith help

Using a drill bit with a diameter that allows the spindle of handle to turn freely. Horizontally drill the hole through to the other side. Use a wood file to remove any irregularities in the holes of door lock.

Marking out the strike plate on the door frame

Put the handle lock back into the recess and then secure it with long woodscrews. Once done, fit the strike plate to the door lock frame.

  • Create an outline for the strike plate and then turn the key, the bolt will protrude.

  • Hold the door against the frame and use a pencil to mark the door frame at the top and bottom of latch and bolt.

  • Open the door and extend the lines inside frame.

This will guide you to use the strike plate as a template for door lock. So that, you can outline the strike plate as well as the the recesses for the latch and locking bolt.

Create a cut-out for the strike plate

Picture 3: Interior door sometimes needs no-key door lock for more comfortable use

Now, you have to create a 3mm cut out into the area where the strike plate that fitted. Cut out the recesses so the latch and locking bolt can fall into them well. Fix the strike plate to the door frame fall into place is the last thing you should do.

Some notes for different types of door lock fitting

Locks in interior doors

Interior doors usually fit with a mortise lock with a latch operated by the door handle or knob. Where the door is self-closing, the latch has an angled/ rounded edge and is sprung. Thus it automatically locks when you close the door.

The same lock can be available in doors that open both to the left and the right. Lockable rooms in many cases also have a locking bolt operated by the key. In contrast to the latch, a bolt does not have an angled or rounded edge and is not sprung.

Locks in exterior doors

Picture 4: Choosing and fitting suitable exterior door lock will raise your home beauty!

Cylinder door lock items are the most suitable type for exterior doors. Simple mortise door lock is not secure enough for exterior doors. Cylinder locks can fit into the lock body without having to change the whole lock mechanism.

Rim door lock

If it is not possible to use a mortise door lock, you can fit a rim lock mounted on the surface of the door. This may be the case for example with a door that is less than 40 mm of thick. With a thin door like this, the recess for a mortise lock would weaken the door structure well. Rim door lock is available with a sprung latch and/or a locking bolt. They are normally only used on exterior doors.

Last of all, you can carefully bend over the lip of the strike plate with a small plastic hammer. As a result, it neatly follows the contour of the door frame. Contact HeleH Italy today if you meet any locking problems: http://heleh.it/.