Cerrojo de un cilindro Portofino con roseta Georgetown, Grandeur GEOPRTCOM

Measure from the edge of door to the center of the bore hole or the lock body that you are replacing. Most backsets are either 2-3/8" or 2-3/4". 

To determine the handing of a door lock, stand outside the room or building facing the door. 

If the hinges are on the left side of the door, the door is Left Hand (LH).

If the hinges are on the right side, the door is Right Hand (RH).

If you would like to be able to use the same key for two (2) or more keyed locks you order, click the "Keyed Alike" on every lock you order. To have all you're locks with a different key for each set, click "Keyed different". For passage, privacy and dummy sets click "Non-keyed".
Also see: To learn more about our Lock Keying Services including Master keying, Grandmaster keying and Construction keying as well as keyed alike locks.