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Bowed board for tabletop

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Forum topic by flamingoezz posted 10-19-2015 12:37 AM 446 views 0 times favorited 5 replies Add to Favorites Watch
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flamingoezz

5 posts in 417 days


10-19-2015 12:37 AM

I’m making a table top and 1 of the 5 boards is bowed a decent amount. if I put a board across the ends of the table top during glue up and clamp at the high point, will it dry evened out?


5 replies so far

View rwe2156's profile

rwe2156

2190 posts in 941 days


#1 posted 10-19-2015 12:28 PM

Sure you’re not talking about cupped? (Cupped is across width, bow is along length).

If its cupped, no way you can do it but there are tricks like ripping board down/jointing and glueing.

If its bowed, you can get away with it, but it depends mainly on the thickness/width + how much bow.
If you force it into place, it will usually bow the whole top.

-- Everything is a prototype thats why its one of a kind!!

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flamingoezz

5 posts in 417 days


#2 posted 10-19-2015 01:09 PM

it is bowed across the length of the piece. Rough dimensions of the board are 1” x 8.5” x 56”, though I will be cutting the finished length down to 52”. I think the bow was about 1/8” on each side, give or take a 16th.

Total tabletop width will be 29”. Think the other boards would provide enough support to keep the whole top from bowing?

If not, would cutting the board in half and separating those pieces in my tabletop make it less likely to bow?

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mahdee

3548 posts in 1228 days


#3 posted 10-19-2015 02:56 PM

Once you put the cross supports in, any bowing should get worked out.

-- earthartandfoods.com

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rwe2156

2190 posts in 941 days


#4 posted 10-20-2015 12:11 PM



Think the other boards would provide enough support to keep the whole top from bowing?

Yes – that is not much bow to be worried about.

For some table top applications dowels, biscuits or splining can be used.

-- Everything is a prototype thats why its one of a kind!!

View McFly's profile

McFly

188 posts in 488 days


#5 posted 10-20-2015 04:23 PM

If this were me in the shop @ work, I’d add dominos at each end and on both sides of the bowed board, get one side flushed out & glued up and persuade the other end with weights and clamps.

Glue up with west systems 610 epoxy mixed with some wood flour for color and Bob’s your uncle.

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