Hardware

What Is Backset?

The distance from the edge of a door to the centerline of the bore or latch.

Backset is the horizontal distance from the door edge to the centerline of the lock or latch bore. Common backset dimensions vary by hardware system, so the door preparation must match the selected hardware.

Buying Considerations

Check the hardware manufacturer's required backset before boring or ordering a factory-prepared door. A mismatch can prevent the lockset or latch from fitting correctly.

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