How do I measure cylinder lengths correctly?

Always measure from the middle of the mortise lock guard (cylinder fastening screw) to the outer edge of the door, including the fitting width.


31 mm (length A)+ 36 mm (length B) = 67.0 mm total length i.e. 31 + 36 = DC 31/36

  • Türstock und Zylinder von der Seite und ein Lineal. Zur Veranschaulichung wie man richtig misst.