Yes, 20 sq. ft. would be my minimum amount of room, and I am probably going to end up with something larger. I was just checking in to make sure I wasn't doing the math horribly wrong.The space that I'm thinking about putting it in is bigger than I originally thought, (15x6, or 90 sq. ft.) so that gives me more room to work with. I do like to be able to walk into my coops as well. They will probably end up with at least 30 sq. ft. I also left room for a little bit of chicken math, I have only 7 seramas at the moment. Thank you for all the advice! I will update the thread when I have the coop.