Cecil, if you pull the trigger on the pole barn, go with a good concrete slab. You may want to close it in at a later date.
You may be right. Concrete would be nice if I can afford it!
I posted this question on the NRAC list serve. Dr. Miller who runs a commericial RAS down the road has invited me to come over and ask questions about his building. I've been dying to now what kind of system he uses! Now's my chance!
