euro cylinder


Euro cylinders are used in the vast majority of double glazed doors, french doors and patio doors they are used to secure the door's multi point locking system.

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 handels then choose a smaller size.

  There are two ways to measure the size of the  euro cylinder.

Either in the door or remove the cylinder from the door.                                                                                      When lock barrel is out of the door


      when lock barrel is still in the door


                 A Inside measurement  = 40 mm                                       B outside measurement = 45 mm