Okay. So we are going to take our Rubbermaid deck box and make it into a chicken house, attached to a 6' wide 12' long 8' high dog run. Our goal is free range. I will post a picture of the plain box before construction. We are planning on using some square 5 gallon buckets for nesting boxes and also to put some perches (probably ladder type). I am open to any and all suggestions. My specific questions are: What kind of ventilation would we need? How big should the chicken door opening be? How big and how many nesting boxes should we have? Thanks for any and all help and suggestions!