I got the roof on the coop this weekend. Next weekend needs to be on the interior. So I really need some help. I thought I had things kinda figured out but my dimensions of what I thought I was working with are a little different than the actual dimensions. Joy of building my own chicken coop for the first time. So I posted a picture below of what I am working with. Well, at least it is close. In this picture they are putting the nesting boxes on the side. I am putting it on the back side across from the roost (Which is on the high side). The high side is 4' and the low side is 3' The coop is just where the plywood floor is, the rest is a run. On the side (where he is putting the nest boxes I want two doors. So the whole side will open. So here are some questions. I want to put a open vent across the top and back of the coop. Is 4" enough? It will be covered in hardware cloth? Other suggestions on how high it should be? It will be the width of the front and back so 4' wide. I will also have a window of some sort on the back above the nesting boxes, should I have a small window in each door as well? Since the top will be just a vent how far under that should I put the roost so they do not get a draft? Can I do 14 inches? That will make it 18" from the perch to the top of the coop. Does it need to be more? Can it be less? Then I want to put a drop board under the perch. I read that it needs to be high enough to be able to clean under it but high enough that there is no splatter when they go in the night. Is 8" good? That will leave 22 inches under the drop board to the floor. Is that enough room for them to go under it? I do not want to use up their usable floor space. Now I am really stumped about how to attach the perch and the drop board into the coop. Since the side wall will be a door there is nothing there to attach anything to. Also they have a board in the middle of the other side (That leads into the run), I do not have a board there. I thought about adding a little 90 degree section where the roost would go but then it would be in the way when I am cleaning.... Any ideas? I am drawing a blank. Thank you so very much to anyone who answers. I really want to get this figured out now before we build things as it is easier to change things at this point in the building process. Oh, the chickens in here will be a buff orpington, speckled sussex (perhaps two), Astralorp, and an Easter Egger.