A tutorial on how to measure a multi point door lock, once you know what to measure this should be a simple task to complete.
Follow these steps to identify your multi point door lock:
1. Measure the multi point door lock using the diagram below
2. Look up a new Multipoint Door Lock lock to confirm it is the exact lock that you wish to replace.
Measure a multi point door lock:[caption id="attachment_356" align="aligncenter" width="396"] UPVC Multi Point Door Lock Measuring Diagram[/caption]
A. Backset – The distance from the front of the faceplate to the centre of the euro hole cut out.
B. Centres – the distance from the centre of the spindle to the centre of the euro hole cut out.
C, D, E, F: Locking point distances – Measure the distance of each locking point to the centre of the spindle. Measurements are taken to the middle of the locking point but allow 5-10mm for accuracy and depending on weather the locking points are fully engaged.
Note which locking points your lock has and the order they are fixed to the strip, each type of locking point is shown below.