I usually buy small square bales of alfalfa from my hay guy. When I called to order another load, all he has is the big 1,800 lb squares. I know from experience that if they get wet, they can mold pretty far in. I don't have a hay shed to store them in. They are unloaded off a big truck and need to be located near my hay feeder. I want to keep the bottoms dry. Does anyone know if having them placed on pine shavings will help. I plan to tarp the top of the bales. I'd rather have small bales, but this guy delivers and the price is right. He'll bring me some pellets as well.