I'm glad for this feedback, Shoe, and I did start out thinking of doing four pens instead of 3. The big issue for me is, how to design the fencing. Are you proposing that the design look the same as I put in the original post of this thread, except with an extra fence inside to make four pens instead of 3? Or would you recommend rethinking how the coop is oriented and have the pens on all sides?