Reply by therealSteveN

Moisture changes as the seasons come and go, as we heat, air condition, and live with the widows open, so inside the house isn’t some Temple that is immune to RH and moisture changes in wood. This is why you need to understand wood movement, and build to accept that movement.

Imagine a famous woodworker, Sam Maloof for instance. He had built chairs for people all over the world. sent from his shop in California. The wood didn’t quit being wood after he built something with it. It was still susceptible to wood movement.

Just know the boards don’t get longer, just wider. Unless they are getting narrower. Just find a nice spot in the garage you can acclimate it to your neighborhood. Somewhere out of the way, and not under foot. Also consider concrete is one big wet spot, that gets cold, and hardly ever warm, so maybe a couple of 2×4’s under it to keep it off the ground. No sense asking your lumber to take on moisture.

-- Think safe, be safe