So...if I plan on letting the chickens out during the day and housing them in the building in the evening, do I need to build a wire run type area? Or will a ramp leading from the door of the "coop" onto the ground be enough? Also in this "coop" area there are exposed rafters on a low ceiling, but there is also a smaller enclosure within the main area that seems to have a row of nesting boxes in it, and it has it's own latching door. I know nothing about chickens, and therefore I am not totally sure what I am looking at. In the way of coops this will be a massive one, but I see that all coops seem to have areas that are solely made of chicken wire. It seems that the chickens would get rather cold in the scenario I am imagining..so I guess the first question is in fact my true question...can I use the upper deck of a 2 story building as a huge chicken coop, and then our yard and surrounding area as the run? With no chicken wire involved? Or is there somewhere I am supposed to put chicken wire, so it looks like there are chickens there? The upper area that I am thinking of, and that appears to have been used for just this purpose is made of wooden slats, while the lower area is made of cinder blocks. The neighbors have said that the man who lived here previously kept chickens, and we have found a few feathers in the upper area of the building, nesting boxes, and a snake skin...But the upper area is also full of old clothes, and 1970s era books. So I can't be sure what was going on in there...what looks like nesting boxes in the smaller enclosure appears to be lined with old clothes. There is no sign of chicken poop, but the man who sold us the property very possibly would have cleaned all that out. Heck I don't know. Anyway anyone with any ideas, or that would be interested in seeing some pictures and helping me hatch a plot to get this all going, just let me know.