[SSLance]

We had a similar air handler at our old commercial building in KC, with a duct running halfway across the top of the back wall of the shop with vents facing out toward the middle of the room and one vent on the end. The majority of the air went out the end of the duct across another 25' where it hit the wall and came down. The shop as a whole stayed pretty dang comfortable.

My thought is the 5 ton air handler will move a LOT of air....in a hurry... The air has to go somewhere, typically it'll keep moving until it hits something that will stop it (the wall at door end of shop). I understand there may be a 5 degree difference between one end of the shop to the other but as over sized as the handler is, it should be fine.

The other option is ductwork 16' up in the air along the ceiling, I don't think I'd like duct hanging down 6-8' below the ceiling. Problem with that is...now you are trying to condition almost twice the amount of air.

We'll see, I can always add duct work later if needed.