Ok, I'm about ready to build a coop and run for a bunch of hens. I've put a lot of thought into this, and I think I'm going to go with the following features. Please say something if I'm about to do something really stupid! Coop: 12' x 12', basically like a wooden shed. I have a large concrete pad that I'm planning to use for the floor. Originally I was planning on a "shed roof," but I'm starting to wonder if that will work on something this big. Any advice? This should give me about 5 sq. ft. per bird. Run: I have the room for them to free range, but we have a pretty good predation problem from what the neighbors up and down the road tell me, so I'm going to fence in an area that's about 4000 sq. ft. That's about 130 sq. ft. per bird. Is that big enough to keep the place from looking like a moonscape? Should I divide it in half and rotate them? I've been filling up a spreadsheet with estimates, and I think I can do the entire thing, fencing and coop for about $1500. This seems like a lot of money, and it's going to take me years of selling eggs to recover my investment. Any ideas on how to save money? I haven't seen any salvage wood on Craigslist for a long time. My other big concern is the roof. I would really appreciate any advice on how to handle the roof on a 12x12 building. Thanks for your advice?