This link has a ton of different sized coops, feeders, etc for you to build with actual blueprints. Most are pdfs, but worth it. The only thing you may notice is the number of birds it says each building holds-they seem to be going by 2 sq ft per bird, which is what some commercial operations use, rather than the 4 sq ft that is preferred, and I believe is infinitely preferable. Just dont put as many birds in there as they say you can, LOL. EXCELLENT plans, some of them.
http://www.ag.ndsu.nodak.edu/abeng/poultryplans.htm
http://www.ag.ndsu.nodak.edu/abeng/poultryplans.htm
