I am building a 16'x8' coop/run for my chickens. Right now I have 2 Bantam Cochins and 1 Leghorn. The chickens have not yet met (Quarantine time). My plan was to cut the coop/ run in half (2- 8'x8'). I will put a door in between the coop/run so that when they get to know one another through the chicken wire. Eventually I will open the door so they can share the whole 8X16 area. I am to the roost and nesting box stage now. How High can I put nesting boxes? The ceiling of the coop is just over 5'. Also I want to put a ladder to the roost. Has anyone used that wire shelving to make a ladder? I am open to any suggestions.