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Locksmithing/1920 1-1/4" deep front door-- needs bolt locl


Dear James; We've been restoring a 1920s Craftsman farmhouse which has original exterior doors; all 1-1/4" thick.  The doors have antique skeleton mechanisms. Charming but not practical for renters or quick escape in case of fire. Fortunately, the mudroom entry door has modern sized door and key system. But my rental family needs to have quick exit ability from the antique doors.

I am going to install slider door bolts for the time being inside the doors.  But I would like to install keyed dead bolts with an interior thumb latch.  I saw your response 6/13/2006 and wondered if you have any further suggestions for me.

Thanks for whatever help you are able to give!

Hello Ginger,

I'm not sure which response you are referring to, 2006 was a long time ago.

If you have room on the doors, a standard deadbolt should work fine, as long as you can find some that can work on 1-1/4" thick doors.  1-3/8" is the minimum for most locks.

I usually recommend removing the old locks completely because they will eventually get locked somehow and without a key, they are next to impossible to open.  Kwikset makes a kit to change those old locks to the newer style one.  The plates that go on the face of the door increase the thickness allowing standard locks to be used, and they cover up the holes that the old lock had in the door face and edge.

You can find those at most hardware stores, home centers and locksmith shops.



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I do not answer Safe or automotive questions. Period. I am knowledgeable in almost every area of Locksmithing. This includes locks, keys, lost keys, residential and commercial lockouts, rekeying, masterkeying, high security locks, access control, electric locks, security cameras and home safety. I have been running an online business since 2004 where I sell all types of lock and security hardware to everyone from apartment renters to business owners to the US government. Before that I started a locksmith service in 1999. I deal with many types of security equipment including high security safe locks, heavy duty padlocks, exit devices, biometric readers, electric strikes, magnetic locks, full surface hinges and I only sell what I personally stand behind 100%. The online business has given me a more in-depth look at the locksmithing industry, helping me to learn more about each and every product that I offer, as well as products I don't have but end up finding for customers to solve any issues they have with security or door hardware.

Please don't submit any automotive or safe questions as these aren't areas that I can help in.


I have been Locksmithing since 1999 and own my own Locksmithing business. I have many years of hands-on experience through the many services I have performed for my customers. I've run my business the way I wanted, treating everyone as I would like to be treated and knowing that any customer could be my last if I didn't perform my locksmithing duties as I had promised.

I have a diploma in Masterkeying, Advanced Locksmithing & Locksmithing from Foley-Belsaw.

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