I currently have 8 chickens in an 8ft long, 4 foot wide, 4 foot high coop. They seem to have plenty of room. Actually they only use half of it at the very most. However, they have not started to sleep on the roost yet so maybe they will use more later? Anyways-I am getting 5 more chicks on Wednesday. I assumed I would have plenty of room for them-after quarantine time. Now I am worried I need to add. The run is 6 ft high by 8 ft deep by 8 feet wide. Do I need a bigger coop? Do I need a bigger run? I allow them free range for several hours a day.