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How to measure a Door Cylinder

Cylinders are available in 5 main variants:


Always keep an eye out for the below features too. Heres a handy guide to what they all mean:




The diagrams below show how you should measure for a door cylinder. Our aim is to make it as easy for customers as possible but should you require extra information please give us a call direct on 0845 830 0832 and speak to one of our expert technicians. 



                                    Double Cylinder                                                     Single Cylinder



Please Note: For ABS Cylinders and Carl F Cylinders the above is reversed as per the image below.

If you are having any difficulty working out the correct mesaurements for your cylinder please give us a call on 0845 830 0832.


            Double Cylinder (ABS and Carl F brands only)



Once you have determined the length you need you are now ready to choose an anti-snap cylinder from our range. Here at Lock Shop Direct we only stock leading brands and if you need a double cylinder we recommend either Yale or ABS locks

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