Here in the workshop, I'm going to show you how to fit a deadlock to a door.
I'm going to fit the deadlock to the door 200 mil above the existing handle.
To do that, I'll drill a 54-mil hole in the face of the door and a 25-mil hole in the
edge.
Mark a line 200 mil from the center of the existing door handle and square that line
around the door and mark across the door edge and continue the line on the back face of
the door.
A lock bolt is available in either 60-mil or 70-mil backset.
In this case I'm going to choose a 60-mil backset to match the center of the existing
knob on the door.
To do this I'm going to use a paper template provided with the lockset which has the 60mm
backset mark on the template.
I'm going to place that on the door, line the centerline of the template up with your
centerline mark on the door and on the face mark the center point at 60 mil.
And repeat the action on the other side of the door.
To drill a 54-mil hole through the door, drill first on one side and then the other.
Don't just drill from one side and break through or you'll have an ugly breakout.
And before drilling, don't forget to put on your personal protection equipment.
Here's a 25-mil spade bit to drill an intersecting hole in the edge of the door.
Next, mark the edge of the faceplate so that you can house it in the door.
Now, chisel out the housing to the depth of the faceplate and chisel around the perimeter
first.
Draw fit the faceplate to the door and if necessary chisel out a little more so you
can get a nice flush fit.
Once it's flush, mark the center point of the hole so it's easy to start the screw in
the correct position.
Fit the outside lock body, to the outside of the door and don't forget the inside is
the one with the screws.
Fit it up close and tighten up your screws.
It is important to fix the strike plate in the correct position to engage the bolt.
To do that, I will measure from the back of the door to the outer face of the bolt and
transfer that dimension to the door jamb.
To ensure the correct vertical position of the strike plate, transfer the centerline
dimension to the jamb.
Transfer the horizontal mark to the jam of the door and measure the setback dimension
that we measured earlier and position the strike plate on the center of that mark and
scribe the perimeter of the strike plate.
I will now house out that rectangle to fit the strike plate flush onto the face of the
jam.
Now I test the strike plate for fit into the housing and that fits nicely.
I'll mark the screw hole at the top, at the bottom and mark the rectangle of the check
out for the door bolt.
Mark the center point for the screws with the tip of your spade bit so that the screws
will start nicely and then rough out the center of the cut-out for the bolt with the spade
bit and now square it off with a chisel.
We now screw the strike plate to the jamb fitting it into the housing, driving it in
not fully.
Fit the second one into its position and drive it home and then go back and finish the first
one.
The final step is to test the fit.
There you go.
Perfect.
If you have any further questions, come down to your local Bunning's warehouse and a team
member will help you.