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14’ 6” long by 12’ 6” wide butcher block countertop

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Forum topic by DBiddle posted 03-01-2018 08:45 PM 312 views 0 times favorited 4 replies Add to Favorites Watch
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DBiddle

2 posts in 112 days


03-01-2018 08:45 PM

Topic tags/keywords: butcher block long bow countertop counter

I am in the process of building this butcher block countertop using boards that vary in thickness from 1” to 5/8”thick. I glue up two joints (3 boards) at a time and allow to dry at least 4 hours before gluing up the next batch. Each glue up builds up the counter width at full length. So, the counter width grows by two boards at a time.

About 7 boards into the process I noticed a slight bowing as if the recently glued up boards were swelling slightly causing the freshly glued side to bulge out. I stopped at about 10” when the bow was about 1/4” over the entire length. I then set it aside and glued up the other half thinking maybe the bowing would diminish as the board dried.

Unfortunately, I could not measure a difference after 5 days! I now have two bowed boards.

The only option I can think of is to remove enough of the bow to allow clamping to make a nice joint. Any idea what happened, what I did wrong, and how best to correct?

David Biddle
540-460-0249


4 replies so far

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OSU55

1700 posts in 2015 days


#1 posted 03-01-2018 09:14 PM

Posting some pictures would help

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DBiddle

2 posts in 112 days


#2 posted 03-01-2018 09:21 PM

Here is my clamping jig. What else would you like to see?

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Smitty_Cabinetshop

15369 posts in 2644 days


#3 posted 03-01-2018 10:02 PM

-- Don't anthropomorphize your handplanes. They hate it when you do that. -- OldTools Archive --

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Smitty_Cabinetshop

15369 posts in 2644 days


#4 posted 03-01-2018 10:05 PM

Well, if it’s given the stock is 100% milled to perfection, the only adder is glue. How are the clamps being tightened? Each end first, then work toward the middle? Maybe there’s thicker glue joints in the middle? Maybe clamp in the middle, and work towards each edge, measuring as you go.

Can’t image the bulge is all wood movement, but maybe someone else has such experience.

-- Don't anthropomorphize your handplanes. They hate it when you do that. -- OldTools Archive --

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