Reinforcing small gaps with more glue?

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Forum topic by Brett posted 07-10-2012 08:16 PM 1444 views 0 times favorited 8 replies Add to Favorites Watch
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661 posts in 2886 days

07-10-2012 08:16 PM

I’m building a Roubo bench, with a top made of 4.5-inch-wide yellow pine boards, face-glued to each other.

I did a decent job flattening and gluing the boards, but there still are a few gaps between some of the boards, up to 0.01” across and 1.5” deep.

Can I fill in those gaps with woodworking glue, epoxy, or other adhesive to further strengthen the bond between the boards? I won’t be able to close the gaps by clamping, but I’d like to know whether pouring a little glue into the gaps and letting it dry in place is worth the trouble.

-- More tools, fewer machines.

8 replies so far

View DaddyZ's profile


2475 posts in 3244 days

#1 posted 07-10-2012 08:47 PM

Epoxy It, You never know when you might drop a .01 Beercan into it.


-- Pat - Worker of Wood, Collector of Tools, Father of one

View Brett's profile


661 posts in 2886 days

#2 posted 07-10-2012 08:52 PM

:), DaddyZ.

I’m not worried about dropping things into the gap. The gaps are largely in the underside of what will eventually be a 8-ft-by2-ft workbench top. The only thing holding the boards together is glue. Glue should hold just fine, but gaps mean there are places where the boards are not glued together and I’d like to make things as secure as possible—if not for me, for my kids and (possibly future) grandkids.

-- More tools, fewer machines.

View higtron's profile


247 posts in 2881 days

#3 posted 07-10-2012 09:00 PM

If your worried about the top splitting at the joints add a couple cleats on the bottom of the bench top, elongate the lag holes for movement.

-- A friend will help you move, a good friend will help you move a body

View DaddyZ's profile


2475 posts in 3244 days

#4 posted 07-10-2012 09:01 PM

In That case I would still Epoxy it, You will never be Satisfied if you don’t put all the best effort you can into it.

If you are questioning weather you should, then chances are your should. I would choose epoxy, I think it will smash into the cracks easier.

Be sure to post pics when you are done, I for one love looking at all the pics people put on this website. Just Awesome!!!!!!

-- Pat - Worker of Wood, Collector of Tools, Father of one

View bondogaposis's profile


5094 posts in 2555 days

#5 posted 07-10-2012 09:45 PM

Epoxy is a very good gap filling glue.

-- Bondo Gaposis

View ajosephg's profile


1880 posts in 3764 days

#6 posted 07-10-2012 10:29 PM

Wood glue would not increase strength in a gap as described. Epoxy is the way to go.

-- Joe

View doordude's profile


1085 posts in 3186 days

#7 posted 07-11-2012 03:04 AM

why couldn’t you rip on the table saw on the crack line,and reglue. or cut a dutchman. take a 1/16 or 1/8 router bit cut a line where crack joint is; and then rip a strip of your bench top wood to fill in.

View doughan's profile


96 posts in 2794 days

#8 posted 07-11-2012 03:07 AM

spit on it and rub some dirt in!

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