Collection: Euro Cylinder Locks

Euro cylinder locks are measured only in length. To make sure you order the correct size, firstly, make sure you know which is the internal & external side.

Measure from the edge of the internal side to the centre of the cam (black toggle) and the same with the external side.

 How To Measure a Euro Cylinder Lock - GB DIY Store Our cylinder locks are listed as full length 'C'. Check the product images for detailed sizing for each size.

If you're still unsure, give us a message. Simply send us a photo and measurements of your lock you're replacing.