Here is the lean-to on the back of my garage, 10x20 feet. I turned it into a coop for my two Bourbon Reds that are 3 or 4 months now. The front opening with the coop door was just an opening with nothing, no doors. My son and I built the coop door and cobbled together the wire fencing for the opening. I put wire in the eaves as they were open (we have raccoons, coyotes). I also put in a roost, but it's a bit high. Della looks longingly up at it, but I am going to ASAP put in another, lower level roost as a step up. The large work table will eventually have solid sides on the bottom half and wire on the top for a nest box for the female in spring. Things to be done: Build the lower roost; dig up some of the dirt floor for dusting area; drill hole in the back of the garage so I have power for a fan. Also, would like to take out some of the siding and cover with wire to get a cross-breeze in there. All the materials for this coop were laying around my place or gotten free off Craigslist. I did not spend one slim dime. (Middle name: MacGyver). Thanks for letting me share!