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View groland's profile

Determining mortise depth

by groland
posted 10-28-2018 02:52 AM


6 replies so far

View lumbering_on's profile

lumbering_on

578 posts in 1026 days


#1 posted 10-28-2018 03:12 AM

Yes?

I usually use a haunched m&t as it gives better gluing surface, and provides excellent support. However, I’ve never had them meet.

View TheFridge's profile

TheFridge

10859 posts in 2022 days


#2 posted 10-28-2018 03:23 AM

I don’t let them meet but I alway make them as long as possible.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View Rich's profile

Rich

5001 posts in 1125 days


#3 posted 10-28-2018 03:37 AM

You can always miter the ends of the tenons to get maximum length. However, unless your legs are very thin, I wouldn’t worry about it.

View MrRon's profile

MrRon

5767 posts in 3779 days


#4 posted 10-28-2018 03:59 PM

Here are 3 possible M&T joints that can be made. In these examples, the legs are 2”x2” and the tenoned pieces are 3/4” stock. The tenons are the normal relationship of a 3/8” tenon on 3/4” stock.
The left hand sketch is where the mortises intersect.
The middle sketch shows where the tenons are mitered.
The right hand sketch shows where the tenons have been shifted to the far face of the wood. This allows for more “meat” in the leg. Naturally, if design permits, the pieces can be offset giving more strength to the joint.

View ocean's profile

ocean

186 posts in 1369 days


#5 posted 10-28-2018 05:33 PM

I’ve always made my mortises in a leg met. I also have almost always had small legs, so I was trying to get max glue surface. As Ron shows in drawing #2. So far never had any problem with joint failure.

-- Bob, FL Keys

View John_'s profile

John_

215 posts in 2242 days


#6 posted 10-29-2018 05:06 AM

I recently found myself in a similar situation and ended up using an ‘interlocking tenon’. Here is a pic of some scrap pieces I used for practice

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