Standard Residential Door Backset

The backset is the distance from the edge of the door to the center of the 2 1 8 inch bore hole.

Standard residential door backset.

In the uk and much of europe these dimensions can vary from 25 to 60 mm and many medallion knobs are placed in the center of the door creating a very large backset. Two standard backsets are 2 3 8 and 2 3 4. Universal latch standard fits either 2 3 8 60mm or 2 3 4 70mm backsets. Opening heights 3 0 through 4 11 15 16 centered in door height not frame.

5 127mm backset available. Page 1 of 1 start over page 1 of 1. For residential 2 3 4 backset was used on rabbeted jambs to keep from hitting your knuckles. All standard bored locks ansi 115 2 161 61l type for mortise lock ansi 115 1 86 type all locations must be altered 3 8 lower and standard strike asa type.

However in our area you actually have three choices. Ruler measurements can be tricky to figure out when you think you have a 2 1 4 latch based on how it lines up. More to consider from our brands. Standard backsets are either a 2 3 8 backset or 2 3 4 backset.

In the us and canada two standard dimensions are used. Most commercial doors have a backset of 2 3 4 inches 69 8 mm while residential doors measure 2 3 8 inches 60 3 mm. In the united states there are two common backsets for residential door locks. Residential single and multi family doors.

The two standard backset measurements in north america are 2 3 8 inches and 2 3 4 inches. Sometimes it s easier to measure from the edge of the door to the highest point on the bore hole. Other backsets include 2 used by national and lori lock and 5 used by weiser weslock kwikset and others. Gatehouse hall closet door knobs fits most standard residential doors 2 3 8 in.

Commercial standard certification ansi bhma a156 2 2011 grade 2. And you might find all three on a residential home or a 2 3 8 on a commercial building. Rabbeted jambs were usually used on exterior doors. The most common backset is 2 3 8 but 2 3 4 is also quite common usually used on exterior doors.

There are also extensions for some brands like schlage that can extend the latch enough to have the lock located in the center of the door. Available from these sellers. To determine the correct backset measurement for your door you need to measure the distance from the edge of the door to the center of your cross bore. Backset and standard door thickness of 1 3 8 in to 1 3 4 in item 117984 brand.

2 3 8 2 3 4 or 5 backset.