Reply by nightguy

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Posted on 2x10 Tabletop with no breadboard? Cupping?

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213 posts in 1269 days

#1 posted 08-03-2016 02:18 AM

I have been lurking on this thread since it started, some great answers, I have made many a table top, Hard Woods, Cherry, White Oak and Walnut, finished to 7/8” thick, non as long as yours but wider, with batons/cauls on the under side tight and tightly mounted to the skirts, and that is where the “wood movement” is suppose to be the concern, width. Mine all have the end grain sealed with Poly, that is where the moisture can get in, all with Kiln dried lumber, all mounted without movement after being mounted tight.
Wood movement specs, 1/16-1/8” per foot of width, thats for raw unfinished wood. Do you have heat and AC?
Even with windows open in the fall and spring, it will not happen. In the 1800s when they came up with these #s, they had no AC, in the summer, dry wood/coal heat and a BLO and or wax finish.
I would be more concerned about the wood twisting if using construction grade at your length. As a General Contractor building houses from sticks, buying bunks of 2×6 banded, all look good, cut the banding and within 2 days some are twisted, bowed but not much cupping.
You said this is an old farm house, well let the table look like it came with the house from day one. Distress it, finish accordingly, antique it.

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