I have been looking for detailed plans on a coop design. I found a few that were free, but not well documented. Then i came across the following links, I think everyone that shares this website will find something of use for them in some of the lists. There are plans for feeders, Coops, and so much more. Here are the links. http://bioengr.ag.utk.edu/Extension/ExtPubs/PlanList97.htm Click on Poultry Plans http://www.ag.ndsu.nodak.edu/abeng/poultryplans.htm There are aloy of plans on this site Thanks to these Universities for making these resources avaliable.