Oh, forgot to add above, you never hear anyone complaining that they've got too much space for their chickens.
You do hear of lots of problems for which the remedy is: provide more space. So the more space you can provide, the better.
Thank you guys!! I will have Rhode island red hens. Standard size. I live in Southwest Missouri so the weather can get cold in winter and may not. I'm also going to add on a built run that and a fenced in area where they can go out but not roam where ever they please.