I'm building a chicken coop that is two levels, one on top of the other. The top level where they roost is 4 x 8. The bottom level, where I will have their feed, water and nesting box is also 4 x 8. The bottom started out to just be shelter for when they were in the run, but now my sweetie wants more chickens so was wondering if this layout would work and if it would hold more than one chicken per four square feet. The original top half where they are going to roost, according to the math, would hold about eight chickens. My question is: would this layout work with the feed, nesting and water on the bottom, the roost on the top, and will it hold more than eight chickens without problems? The run is 20 square ft. per chicken. In the summer, they free range, in the winter they're cooped up.