Tenon Length - Router Forums
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post #1 of 5 (permalink) Old 11-08-2016, 04:32 PM Thread Starter
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Default Tenon Length

Hello again everyone,

I am now planning to build a desk for my Grand Daughter and I have attached the rough plan for this desk. I have no problem with the right side drawers and case but I am not sure about the rest of the joinery. I want to do mortise and tenon on the left side but I am having trouble with the tenon length. If I use a 3/8 thick tenon the rule of thumb says I should be about 1.5 inch long. If I mortise the 1.5 inch square leg 1.5 inch deep it will be a through tenon, which is not a problem until I come to the front and back and then the tenons would intersect, which can not work. Also, should I attempt to do a dove tail sliding joint to mate the runner up to the plywood case.

Thanks again for any advice you may give.

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File Type: pdf Desk Plan.pdf (1.16 MB, 210 views)
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post #2 of 5 (permalink) Old 11-08-2016, 04:51 PM
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Yes and this is typical.
Use hardware. An inside corner brace will make up for a compromised joint. However, that hardware has to be well
placed and drilled to hold fasteners well.
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post #3 of 5 (permalink) Old 11-08-2016, 06:38 PM
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One solution is to cut the tenons to 45* on the ends and have them butt together. That gives you the maximum length for both.
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post #4 of 5 (permalink) Old 11-08-2016, 06:55 PM
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Originally Posted by Cherryville Chuck View Post
One solution is to cut the tenons to 45* on the ends and have them butt together. That gives you the maximum length for both.
Beat me to it Chuck. Make the tenons both as long as it takes to make a 45 degree joint inside the mortise.

Like Pat says an angle corner block will help too.
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post #5 of 5 (permalink) Old 11-09-2016, 11:16 AM
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Not an expert here but looks like a great project. Funny how much we do for the grand-kids.
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