I plan on installing some board and batten frame moulding in my foyer. Basically, 1x4 and 1x6 pine boards in the shape of squares nailed/glued to the wall. My question though is how do I account for wood expansion. I know that wood will swell in the summer humidity and shrink in the winter humidity. All of the websites talk about accounting for this shrinkage as it could be up to 1/8" for the 1/6's. But they don't say how to account for this. How do I account for the shrinkage so that come winter time all of my moulding isn't full of gaps.
I've done some frame moulding in the past and it looks like the day I installed it, but I think I did it in the winter. Apparently it only tightened up and there's been no problems.