How much cross grain glue before danger sets in?

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Forum topic by jimmy J posted 07-09-2015 03:30 PM 698 views 0 times favorited 6 replies Add to Favorites Watch
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jimmy J

229 posts in 2252 days

07-09-2015 03:30 PM

I’m at the last step in my table build. It’s somewhat of a tressle design The cross braces that hold the table top to the legs need to be attached firmly to the leg posts and rails. There will be some screws involved, but Glueing the brace to the post would be great: however there would be a lot of cross grain surface if i did so- an area approximately 9” x 3” of overlapping / cross grain surface area. The brace is centered on the post, so i can glue the middle, but my question is how much of the 9” can i actually cover in glue? For example, is 2” on either side of center (4” total) to much? The pieces are solid maple about 2” thick.

6 replies so far

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8070 posts in 2450 days

#1 posted 07-09-2015 03:50 PM

Sizing comes to mind.

“I was watching the WoodSmith Show on PBS yesterday. They were gluing up some mitered corners with no biscuits or splines. They talked about a technique that involved “sizing glue”. It went as follows – -

Place a small amount of glue on both gluing surfaces, spread it out and let it dry for 2 -3 hours. They refer to this glue as “sizing glue”. Then apply a small amount of glue to one surface and clamp it up.

I admit, I have never heard of this before. Can anyone comment on the advantages (or disadvantages) of this technique versus just gluing and clamping?

Note – they used the same glue (Titebond III) in each step”

If I understand you correctly.

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jimmy J

229 posts in 2252 days

#2 posted 07-09-2015 04:01 PM

Thanks. No end grain here – effectively just 2 boards rotated 90 degrees to each other.

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8662 posts in 1359 days

#3 posted 07-09-2015 04:12 PM

9’ seems a bit wide.

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

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#4 posted 07-09-2015 04:34 PM

Six inches is about max, although wood species and quartersawn vs. flatsawn comes into play as well.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

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jimmy J

229 posts in 2252 days

#5 posted 07-09-2015 05:23 PM

This is regular maple. . This will effectively form a T when done. . The vertical piece (leg post) is flat sawn and about 9” wide at the top and tapers towards the floor. The cross piece (brace) is also flat sawn and is 3” tall (and as long as the table is wide).

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846 posts in 1315 days

#6 posted 07-09-2015 05:57 PM

I’m with pintodeluxe above. Six inches is about as far as I would go with glue in a cross-grain situation

-- Jerry, making sawdust professionally since 1976

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