Kanami, I honestly would not try to squeeze 9 chickens in there. That is just way to small. They need at least 4sq foot per chicken in the coop.i was hoping to free range them since we have a nice yard for it, i need to attach a locking mechanism for their front door and this isnt the final spot but here’s our finished coop we put together yesterday:
They do need a run, even if you plan to free range. It isn't a good idea to leave them out when you aren't home. Also there are flying predators to worry about, as well as, skunks, raccoons, and others.