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Make Super-Strong Through Mortises & Tenons

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Joint-sizing pointers

Joint-sizing pointers

Through-mortise-and-tenon joints typically go together one of the two ways shown at right. Either both parts are the same thickness -- a 3/4" rail mating a 3/4" stile, for example -- or the tenon fits into a mortised part of greater thickness, such as a 3/4"-thick table apron against a 1 1/2" square leg.

To join parts of equal thickness, cut both the mortises and tenons one-third the part thickness. On a joint using 3/4"-thick parts, for example, the mortise width and tenon thickness both measure 1/4".

Quick Tip! Allow some wiggle room. If your smallest chisel measures 1/4" wide, lay out mortises a hair wider than that to simplify chiseling out waste later.

For parts of unequal thickness, make the mortise and tenon up to a third the thickness of the larger part. To join a 3/4"-thick table apron a 1 1/2"-thick leg, for example, cut tenons 3/8"-1/2" thick on the apron ends.

Make the tenon 1/32" longer than the width of the mating part if you'll sand the tenon end flush with the mortised part after assembly. For beveled-end tenons, like the one shown above, make the tenons 1/4" longer than the mating part width.


Continued on page 2:  Begin with the mortises

 



Comments (7)
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jack1010s wrote:

I agree with fjterrones and Phellis. Click the X and move on.

9/3/2015 06:39:23 PM Report Abuse
Phellis wrote:

For crying out loud, just click on the X to close the pop-up and move on. If you have trouble with that sell your computer and buy some patience.

9/3/2015 05:59:26 PM Report Abuse
fjterrones wrote:

You know what is worse than the pop-ups? Hearing people gripe EVERY WEEK about the pop-ups...

9/3/2015 01:09:41 PM Report Abuse
silverfox1234 wrote:

I'm a long time subscriber T Wood. I agree with the complaint about the annoying pop-ups, but I have a bigger gripe (at least to me): I have NEVER been able to print the Tips and Techniques without a problem; sometimes I can't print them at all.

9/3/2015 12:51:59 PM Report Abuse
dwykey wrote:

I really hope someone reads this comment. Can we please look at this stuff without all of the annoying pop up ads? I mean really guys. I know you need memebership and all, but for someone that already loves what you do and has all of your stuff I am really getting sick and tired of having to delete those annoying pop up ads all the time just to get to the meat of the subject. PLEASE!!!

9/3/2015 09:59:42 AM Report Abuse
bsaysideanhuy wrote:

Why subscribe, I purchase my copy from the news stand every month. Please stop sending me emails asking me to subscribe and by the way the publication is usually available there before my friend receives his via subscription. H.B. Smith baysideanh@yahoo.ca

6/25/2015 07:45:19 PM Report Abuse
bsaysideanhuy wrote:

Why subscribe, I purchase my copy from the news stand every month. Please stop sending me emails asking me to subscribe and by the way the publication is usually there before my friend receives his via subscription.. H.B. Smith baysideanh@yahoo.ca

6/25/2015 03:30:46 PM Report Abuse

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