Rail to post joinery for four-poster bed - Woodworking Talk - Woodworkers Forum
 
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post #1 of 10 Old 04-06-2012, 02:02 PM Thread Starter
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Rail to post joinery for four-poster bed

Hi all! I am in the process of designing a piece of wood furniture for a client, namely a four-poster style bed. My initial design included simple mortise and tenon joinery, with one tenoned side rail and one tenoned head/foot rail coming into 1" deep x rail height mortises at each post. In addition, I have two bed bolt connections at each end of the side rails, which are centered on the tenons. The client has indicated that they would prefer to see a rail to post connection that doesn't include hardware, but is easy to take apart. They have also indicated that a keyed mortise is out of the question, although they would like to stick with the mortise and tenon. Given these constraints I'm at a bit of a loss, since I don't believe that a simple unglued mortise and tenon is sufficient for the possible loads that may be applied during use. Any input from the community would be much appreciated.

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Last edited by chad_of_trees; 04-06-2012 at 03:44 PM.
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post #2 of 10 Old 04-06-2012, 04:27 PM
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Is there any way you could use a dowel to key the mortise and tenon together from the inside of the post, where it wont be seen? I would agree that not keying or using some form of hardware will not work. without using a tusk in the end of the tenon how will the bed stay tight and not wobble? Hmmmm.
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post #3 of 10 Old 04-06-2012, 05:47 PM
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Welcome!

I finished a four poster last August. Used zero hardware.

http://www.woodworkingtalk.com/f13/s...ing-bed-26840/



Rail to post joinery for four-poster bed-image-3488065532.jpg

Here's how I joined the rails to the posts.



Rail to post joinery for four-poster bed-image-1819612541.jpg

I made wedged pegs to hold it together.
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post #4 of 10 Old 04-07-2012, 10:00 AM Thread Starter
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Thanks, this looks like a strong joint. Are you able to remove the wedged plugs fairly easily without damage to the plugs or post?

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post #5 of 10 Old 04-07-2012, 10:20 AM
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Yes, I made it to be disassembled easily.



Rail to post joinery for four-poster bed-image-1077213307.jpg

From inside the frame, I can lever the wedges out with a screwdriver.
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post #6 of 10 Old 04-08-2012, 11:30 PM Thread Starter
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Ingenious! This is a very nice detail, and likely the direction I will go. Thanks for the input, and have a Happy Easter!

Chad
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post #7 of 10 Old 04-09-2012, 05:48 AM
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Thanks.

Check back often, we'd like to see progress updates, and pics.
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post #8 of 10 Old 04-09-2012, 11:06 AM Thread Starter
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One last thing...

I noticed that there is no pin through the single tenon. How did you fix this member?
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post #9 of 10 Old 04-09-2012, 12:55 PM
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That one was glued in place. He head board, and foot board were glued, the side rails were pegged.
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post #10 of 10 Old 04-10-2012, 12:12 AM
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Brink! Your work is inspiring. Downright cool.
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