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.

Example:

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.