By Size

Door lock sizes vary so you can find the right one for your needs. We have categorised our door locks by size related to the lock backsets and PZ centres. For example, our 35mm / 92mm category will list all locks with a 35mm backset and 92mm PZ centres.

To find the right replacement multi-point door lock, you need to measure carefully:

Backset Dimension - measured from the front of the lock face plate to the centre of the spindle (follower) hole.

PZ Dimension - measured from the centre of the spindle (follower) hole to the centre of the top diameter of the lock cylinder (barrel) hole. If there are 2 spindles always measure from the top spindle hole.

For more assistance with door lock sizes, please get in touch with our expert team who are happy to help.