My custom walnut table split right down the middle after one winter

I finished this big dining table for a friend in November, using 8/4 walnut with breadboard ends. By February, a crack opened up right through the center, about a quarter inch wide. I think I made the breadboard joinery too tight and didn't account for the dry indoor heat. Has anyone else had a major piece fail from seasonal movement, and how do you fix it without starting over?

3 comments

3 Comments

the_julia2mo ago

Could the split be from the wood itself, not your joinery?

elliotjenkins2mo ago

Yeah, the wood itself can definitely be the culprit. I read a thing from an old furniture maker who said a crack like that is almost always from built up stress, like if the center board was cut from the outside of the log. It wants to move a ton, and if your breadboard ends don't let it slide at all, that energy has to go somewhere. It finds the weakest spot and just lets go.

schmidt.eva1mo ago

Hold up, that old-timer wisdom is cool but maybe overcomplicating it. I've seen a ton of splits that are 100% from bad joinery, not wood stress. Like using way too much glue on the breadboard ends, or pinning it with screws that don't let anything move. The wood tries to shrink across the grain, like it always does, and if you lock it down completely, it blows out. Sorry @the_julia, but sometimes it really is just the build. A perfect board can still crack with bad construction.