Lock Suggestions for Interior Double French Doors?

lovegasolineAugust 27, 2013

I have an apartment built in the 1920's in NYC with double interior French doors to my living room. I want to install a lock accessible from the exterior of the double French so I can lock them to prevent casual entry.
I do not need or want a big burly deadbolt designed for an exterior door; I want something discreet and minimal and/or elegant that will somewhat match with the door hardware and only needs to secure against casual entry.

I need to bear in mind the door edge profile where the two doors meet. The doors are 1-3/4" thick.

Pics enclosed (disregard the blue tape).

I tried House of Antique hardware and they didn't seem to have anything.

Does anyone have any ideas or suggestions?

Thanks a bunch.

This post was edited by lovegasoline on Mon, Sep 9, 13 at 2:35

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rwiegand

How about a slide bolt? (or do you need to be able to unlock it from both sides?)

Here is a link that might be useful: slide bolts examples

    Bookmark   August 29, 2013 at 3:30PM
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vjrnts

All of the french doors (OK, both sets of french doors) in my 1922 house either have or had slide bolts that bolted into the floor or the upper doorframe. There was no little loop of metal, but a kind of metal cup set into the floor or doorframe to house the bolt. I like the way that looks.

    Bookmark   August 30, 2013 at 9:41AM
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lovegasoline

One door already has slide bolts inset into the door edge at the top and bottom; with the slide bolts engaged this keeps one door closed so that the other door can latch to it.

However, I need a LOCKING solution. The doors open inward into the room, I need a solution to lock the doors from outside the room to prevent entry. Not just a latched-closed solution but a LOCKING solution.

Here's another pic, showing the door edge profile:

    Bookmark   September 1, 2013 at 2:54AM
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vjrnts

Historic House Parts has some interesting-looking deadbolts.

Here is a link that might be useful: HHP deadbolts

    Bookmark   September 1, 2013 at 8:38AM
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Clarion

Call Brad at Charleston Hardware.

Here is a link that might be useful: Charleston Hardware

    Bookmark   September 2, 2013 at 7:03AM
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Jumpilotmdm

Those doors are thicker than 3/4"

    Bookmark   September 6, 2013 at 10:37PM
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Circus Peanut

jumpilot, I bet it's not thicker, it's just an illusion from the thickness of the astragal.

There are locking slide bolts you could install on the desired side, but they appear to be intended for non-wooden patio doors and are rather hideous - maybe with some luck you can scare up a nicer version?

There may also be locking Cremone bolts, although this might mean re-doing the whole knobset - hunt around.

Here is a link that might be useful: locking slide bolt

    Bookmark   September 7, 2013 at 2:59PM
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millworkman

1-3/4" is what the op meant i am certain.

    Bookmark   September 7, 2013 at 6:23PM
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sacto_diane

My interior french doors have a rabbeted mortise lock set similar to this

This one doesn't have the matching strike plate. I'm just using it as an example. You'll also need the knob and face plate

below is a repro one from house of antique hardware

Here is a link that might be useful: Rabbeted lock set

    Bookmark   September 8, 2013 at 4:48PM
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lovegasoline

Thanks a bunch for all the good input.

1)The hardware links upthread are great, although I haven't located anything from them that fits the bill.

2) Jumpilotmdm & millworkman:
You're right. Doors are 1-3/4" thick.
Typo corrected.

Btw: Doorknob setback is 2-1/2" - 2-5/8".
(I took off a touch too much wood on the door edge to get the doors to fit

3) circuspeanut:
'There are locking slide bolts you could install on the desired side, but they appear to be intended for non-wooden patio doors and are rather hideous - maybe with some luck you can scare up a nicer version?'

It's concept that had occurred to me (even though the doors already have two slide bolts on them), but I looked around and couldn't find a locking one. And your right regarding hideousness ... might as well put a hasp and padlock on the door, which I am unfortunately very close to doing as my time is running out and I need a solution.

4) sacto_diane:
A rabbeted mortice looks promising, though it seems it would be perhaps a federal case to get locate one that would fit? Also, I'd prefer if at all possible, a modern key vs. skeleton key, but if I could locate a correct rabbeted mortice I'd likely call it a day.

    Bookmark   September 9, 2013 at 2:59AM
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millworkman

never mind, incorrect thinking on a Monday AM.

This post was edited by millworkman on Mon, Sep 9, 13 at 9:01

    Bookmark   September 9, 2013 at 9:00AM
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