I've been thinking on this for a long time, but it's time to step up and do it! I am currently building the run starting with just 5x8'. Before you get concerned, there are only 6 pullets in there, but I intend to work the flock up to 18+. I'll expand the run before then. The run is built 5x8 because it has to sit between my garage and the neighboring fence. I had to put it here to conceal it from the homeowners assoc. I have more length that can be added, good for at least 30' (the length of the garage) but am width restricted. Now, the trick comes in building the coop itself. I want to have a 3' wide door on each end for walk-through ability, which means the coop can only comfortably be 2' wide so I don't run into it passing through. Gives a while new meaning to the term "cooped up"! I think this is very doable, but needs a smart design to make it functional. I am thinking the nest boxes will be on the back wall, and be about 1' deep, so that leaves a 1' walkway in front of them. I'd like to mount the roost bars directly in front of the boxes, or at least on row of them there to take advantage of the head space. I can't recall if I read somewhere that you can/can't do this, the roosts in front of the boxes that is. It will be the full 8' long, so I've got 16 SF to work with here. For 18 hens I think 8-10 laying boxes is sufficient (my brother and I once had 125 hens with ~25 boxes and they did just fine). If I double stack them (assuming 8) that would leave me 4'x2' on the other end of the coop to put in feed and water. I also have to integrate in a ramp that drops out of the floor which will need to be ~1' by 3' long. I envision 4 full opening doors (just like cabinets) for easy access into the coop and easy cleaning. Also I will be sealing the floor with an epoxy product so I can clean it out easy, possibly even flush with a hose, without having to worry about rotting the wood. Any thoughts or ideas would be greatly appreciated.