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Most door hardware products are design to fit standard door preparation as illustrated on the left. If you have something different, please start with our hardware replacement guide at the link below.
Step 2: Select Your C Measurement From the Menu
Measuring is easy. Just Use a measure tape or ruler and measure from the center of the bore hole (or knob if your handle is still mounted) to the center of the small mounting bolt that goes through the door to secure the bottom of the large handle outside (See image to the left).
See also our handleset replacement reference chart