I'm wondering if this would be OK for the girls. I have a 4x4 coop, 6 ft tall, and am planning an 8x10 run, probably 5 ft high. I want to have the coop door open all the time (yes, I plan to be very strict with construction to ensure that nothing can get inside), with plastic strips over the chicken door so that they can come and go freely, even in winter. With 2 roosts inside, the nest boxes outside, and food/water under a sheltered space just outside the chicken door, would this be enough space for 6 RIRs? Thanks for your input! ETA: I'm going to do a 8x12 run instead. Seems to make more sense if I'm using 2x2x8s anyway, plus it will give more space.