Does an A-frame coop/run need a real floor or can it be open air?

[yungtan]

They've actually just finished. It was white rock Cornish crosses, and there were 20. They sure liked eating, haha. Made it easy to move though because they had 12 hours on 12 hours off food. They'd run to the feeder so the tractor could be dragged along.

Ahh very nice trick, I’ll have to implement that as well!