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Deadbolt sizes

Posted by grandmum (My Page) on
Sat, Jun 29, 13 at 12:54

Are deadbolt holes generally a universal size. Or in other words, are the deadbolts in the stores "universal" size or do I have to remove deadbolt and measure hole before buying a new lock?

Follow-Up Postings:

RE: Deadbolt sizes

The hole is usually 2 1/8 "

You need to know the backset. (Edge of the door to center of the lock).

2 3/8 ' and 2 3/4" are standard.

Some locks adjust for either backset.

Nothing is universal and a quick check with a tape is always good.

RE: Deadbolt sizes

If you have a door with a 1 1/2" hole already, you can opt to use a surface deadbolt, or find a small mortise deadbolt that uses that size of hole. I have an old house and did not wish to make the holes bigger, so I have one of each, a NOS mortise deadbolt from the 30's and a surface "nightlatch" deadbolt.

RE: Deadbolt sizes

thanks for the info.

When you replace a deadbolt, do you usually leave the old strike plate (with the long screws into the frame) in place or do you remove that as well and put the new one in.

My thinking is you leave the old since you dont want to be removing the 3 inch wood screws that are in there for security.

Same question with handle as well.

RE: Deadbolt sizes

That is completely up to you. Those screws being removed a time or two will not cause any issues.

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