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Ask The Trades › DIY Forum › Carpentry Questions › Mortice latches on planked doors

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Mortice latches on planked doors (Read 6183 times)

CWatters

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Mortice latches on planked doors
May 31^st, 2005, 11:18pm

Are there any problems fitting mortice type latches into oak planked doors (Planked, ledged and braced not framed). All those I've seen have had Suffolk latches.

I've fitted motice latches into modern doors myself but how would this work on a planked door? If it's fitted into the middle ledge would the direction of the grain be a problem?

Anyone ever done this?

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big_all Global Moderator Trade Member Author Offline heeelllooo Posts: 5596 Total Thanks: 10 For This Post: 0 Gender: Trade: Joiner	Re: Mortice latches on planked doors Reply #1 - May 31^st, 2005, 11:53pm out door wood expands and contracts clearences out side arnt 3mm like a front door more like 8 or twelve mm as the wood isnt sealed with constant moisture it expands and contracts with the weather
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woodsmith

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Re: Mortice latches on planked doors
Reply #2 - Jun 1^st, 2005, 7:34am

I've fitted a lot of these doors and the timber isn't thick enough to accomodate a mortice lock. The best ones are about 25mm thick but mostly 20mm so the only possible way would be to fit it into both the plank and the ledge but because the grain is running at 90 degrees they are never fixed firmly enough together.

So it would be possible but not practical.

Best to stick to Suffolk latches.

Keith

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CWatters Super Member Offline "Daddy fick it" says James Posts: 5150 Total Thanks: 58 For This Post: 0 Gender:	Re: Mortice latches on planked doors Reply #3 - Jun 1^st, 2005, 12:04pm Thanks for the replies. I guess I could fit a block of wood with the grain vertical like the plank then fit the mortice into the combination. This would be on 4 or interior doors so I hope expansion wouldn't be too much of a problem.
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big_all Global Moderator Trade Member Author Offline heeelllooo Posts: 5596 Total Thanks: 10 For This Post: 0 Gender: Trade: Joiner	Re: Mortice latches on planked doors Reply #4 - Jun 1^st, 2005, 1:45pm another point to remember is the damp atmosphere would the lock continue to function in a quite hostile enviroment on a normal door only the bolt ever gets wet on a gate moisture will get in from any angle
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jasonB GDPR opt-out Total Thanks: 10 For This Post: 0	Re: Mortice latches on planked doors Reply #5 - Jun 1^st, 2005, 5:38pm The other problem with trying to fit it into the ctr ledge & board is that the ledges usually stop about 25mm from the edge of the door to clear the door stop. You could use a traditional rim lock with brass or black knobs. Jason
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CWatters

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Re: Mortice latches on planked doors
Reply #6 - Jun 1^st, 2005, 7:01pm

[quote author=big_all link=1117577927/0#4 date=1117629928]another point to remember is the damp atmosphere would the lock continue to function in a quite hostile enviroment
on a normal door only the bolt ever gets wet on a gate moisture will get in from any angle [/quote]

Sorry big-all.....

All these are interior doors in what I hope will be a nice warm and dry house (It will also have a whole house vent system).

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CWatters

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Re: Mortice latches on planked doors
Reply #7 - Jun 1^st, 2005, 7:10pm

[quote author=jasonB link=1117577927/0#5 date=1117643937]The other problem with trying to fit it into the ctr ledge & board is that the ledges usually stop about 25mm from the edge of the door to clear the door stop [/quote]

Yes I thought of that.. Broadleaf do that on front hinged doors but back hinged have ledges that go to the edge.
http://www.broadleaftimber.com/broadleaf_timber.html

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You could use a traditional rim lock with brass or black knobs. Jason

Yes that would work ok thanks. Ages ago I saw one company make something similar with a wooden box and nice iron straps around it but they wanted £100 each so I didn't bother to bookmark their URL.

...actually I was wrong they were £140 + £29 for the knobs!

« Last Edit: Jun 1^st, 2005, 8:58pm by CWatters »

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Pineman

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Re: Mortice latches on planked doors
Reply #8 - Jun 13^th, 2005, 6:00pm

I fitted a mortice lock to a ledge-and-brace door by constructing a box on the inside face of the door, I made it just the right width to suit the lock - this is much easier than planting a piece of wood on the face of the door and then cutting a mortice into it.
I never had any problems with movement of the wood interfering with the working of the lock.

Good luck!

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CWatters Super Member Offline "Daddy fick it" says James Posts: 5150 Total Thanks: 58 For This Post: 0 Gender:	Re: Mortice latches on planked doors Reply #9 - Jun 13^th, 2005, 9:48pm Thanks Pineman.
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