It is 5' wide and 12' long. I have 7 chicks in it right now, which give them 8.5 cu. foot space each. I would like to give them at leat 10cu ft each, so I might take one or two out and put them in a pen with some others.. But I dont know they should be fine like they are.
You might try hanging some branches in the open area for alternate roosts on hot nights plus it lets the birds use more of that beautiful cubic footage. Just cut them a couple solid branches little longer than the coop is wide and stick them thru the wire. Mine like to just hop up and take a break while bring able to see what's happening (maybe another hen found something, must investigate)
It also allows a more timid hen a place to get away from the bullies