I just noticed some of the medium boxes I built have warped a little. I have had them stacked in the basement since being built. They sat on top of each other great when I first built them but now I notice a few of them have a gap between them. In other words they "rock" from corner to corner. Is this gonna be a problem? The gap isn't very big, maybe 3/16". I guess my concern is beespace and maybe another entrance for beetles?
Evidently the wood wasn't so kiln dried when I got it!