DETERMINING YOUR BACKSET - Residential Products

Locks provided by Iron Gate fit into a standard American style tubular
door prep. If you are replacing exisiting locks then your door preps will
most likely be correct for locks. Just determine the backset and you're
ready to order. If you're installing locks in new doors that do not have a
door prep you can follow the instructions below.

In the U.S. there are two common backsets for residential locks, 2-3/8" and 2-3/4". The backset is the distance from the edge of the door to the center of the 2-1/8" bore hole. We will pack your locks with a 2-3/8" or 2-3/4" latch depending on which backset you specify. Dummy sets have no latch and are surface mounted so you can install a dummy set wherever you choose on the door. 

PASSAGE, PRIVACY, KEY-IN-KNOB OR LEVER, AND DEADBOLT LOCKS fit into the door prep shown to the left. Bore a 2-1/8" hole through the door. The center of this hole should be located 2-3/8" or 2-3/4" back from the edge of the door (this is the backset dimension).

For more assistance, download Iron Gate's free Hardware Guide.
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