The body thickness is measured by positioning the padlock on its side and measuring the width of the padlock.
How do you measure a door lock.
Measure from the floor to the underside of the trim at the top of.
Use the smallest figure as your measurement.
If you must it is always better to round down than round up.
Measure the width of the door in 3 locations.
The pz dimension measured from the centre of the spindle follower hole to the centre of the top diameter of the lock cylinder barrel hole.
The standard bore is 2 1 8.
If you can see the hinges make the call.
There are two methods of handing or door swing.
Next measure from the inside edge of your door including furniture to the centre of your door to find dimension b the internal size to centre.
C body thickness.
Measure the height of the door right in the middle.
Your cylinder locks should be as flush as possible with the handles maximum projection is 5mm if you current lock sticks out by more than 5mm either side of the hanldes then choose a smaller size.
Many older doors had bores that were been smaller.
Measure width first and then height.
This is dimension a and is called the external size to centre.
Please see the demonstration below on how to do this.
If there are 2 spindles always measure from the top spindle hole.
If you can t see the hinges you re on the wrong side.
The first method or the residential method is to go to the side of the door where you can see the hinges when the door is closed.
So you would measure the distance from the front face of the lock to the centre of the keyhole then again from the front face of the lock to the centre of the follower giving you two individual measurements.
1 measure from the center of the door knob hole to the edge of the doorway to find the size of the door set.
Measure from the outside edge of the door including furniture to the centre of your door.
Cylinder door locks are not difficult to replace if you have basic diy skills you only need two measurements.
Standard door measurements lock borethe diameter of the hole for the lock body.
In most cases the door set which is inside of the door and controls the door latch.