Glueing up lumber to make beams

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Forum topic by cpollock posted 06-09-2009 05:00 AM 990 views 0 times favorited 3 replies Add to Favorites Watch
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34 posts in 3409 days

06-09-2009 05:00 AM

Topic tags/keywords: beam glue up pine

I’m buildiing some brackets to hold up a new porch roof extension. These are copies of brackets used by Stickley on his houses to hold up roof gables. I need 4”x6” stock to make the brackets (basically an ‘L’ with a 45 degree brace). The brackets extend about 40” out from the wall, and have a 60” tail going down the wall.
I’ve been deconstructing the old house structure and now have dozens of good straight 2×4 wood. The boards are great – lots of growth rings per inch and very straight, in spite of being 100 years old. In the spirit of being green, and aslo as an excuse to work with this wonderful wood, I was wondering if I could plane and then glue up this wood to form the larger stock dimensions I want. Everyone says today’s glues are stronger than the wood itself, but I’m wondering just how true that is. I don’t want to have to replace a porch bracket in 12 years.
These would be for outdoor use, and would be painted. Do you think I would be better with solid stock?
I’d enjoy any thoughts on this.

3 replies so far

View BTKS's profile


1986 posts in 3459 days

#1 posted 06-09-2009 06:07 AM

Gorilla glue or some poly glue will hold canoe paddles together. Being Poly it is completely impervious to moisture, actually needs moisture to cure. Used outdoor glue on one canoe paddle and gorilla brand on another. couldn’t tell the gorilla paddle got wet, the outdoor wood glue was gone in a couple minutes of paddling. There is also marine two part epoxy. Never used it myself but it looks bulletproof.
Good Luck, BTKS

-- "Man's ingenuity has outrun his intelligence" (Joseph Wood Krutch)

View a1Jim's profile


117090 posts in 3572 days

#2 posted 06-09-2009 06:27 AM

Hey Clif
Depending on the type wood you choose tite bond 2 and 3 held up very well acording to a test Finewoodworking did a few months ago even better than polyugethane glues in many types of test.

-- wood crafting & woodworking classes

View cpollock's profile


34 posts in 3409 days

#3 posted 06-15-2009 03:21 AM

Thanks for the input. Sounds like its not going to be a problem. I’ll check back with you in 20 years and let you know if it really stood the test of time.

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