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Forum topic by Robertd posted 03-18-2015 04:17 PM 600 views 0 times favorited 4 replies Add to Favorites Watch
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Robertd

54 posts in 1653 days


03-18-2015 04:17 PM

OK friends. I’ve been away for a while but that’s another topic. I am building a table and my concern is that my design not only has breadboard ends which I am ok with how to assemble it to allow for expantion. but the table will have a cross piece in the center,kind of like a door, but the boards on the side will run the lengnth of the table ending at the end bread boards. Hope I am making sense here. The question is should the center board ends be glued or not to allow for expantion. I plan on using the same floating bread board design but not sure about the ends. Should I have a small gap between the ends and the side pieces for movement. Hop I am on the riight forum

Thanks In Advance

Bob D


4 replies so far

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pjones46

986 posts in 2111 days


#1 posted 03-18-2015 05:00 PM

Here is a LINK that may help you. This is just one way but others may suggest another.

-- Respectfully, Paul

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Minorhero

372 posts in 2073 days


#2 posted 03-18-2015 05:09 PM

I think I understand what you are saying, but it is confusing. I think you are putting breadboards on either end and one in the middle of the table. Any time you do breadboards you will have a mortise and a tenon. Your mortise needs to be slightly oversized to allow for expansion and you only glue the middle half of the tenon, the rest is without glue. This would apply for breadboards on the end or in the middle.

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jdh122

879 posts in 2286 days


#3 posted 03-18-2015 06:26 PM

This is going to create issues, if I’m picturing this right. You’ll definitely need to do the center piece like a breadboard end, tongue and groove it (or mortises) glue only in the middle and use dowels in elongated slots on the ends. The problem is that if you put the two long pieces in so that the whole thing is flush when you make it, it’ll open up gaps when the table expands, and when it contracts it’ll cause cracks to develop in the table top (cause the two middle panels will want to contract, but the long pieces on the edges won’t allow it since they’ll be stopped by the middle breadboard). You’ll definitely need to leave a small gap – I think it’s going to look kind of odd.

-- Jeremy, in the Acadian forests

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Robertd

54 posts in 1653 days


#4 posted 03-18-2015 06:57 PM

yeah I figured those are the issues I’d have. So I’ll just go with eliminating the edge boards going to the ends and run them to the center piece and tongue and groove all three pieces.

Thanks

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