I'd rather make my mistakes on paper than build something that doesn't work, so here's my first draft. I'll try to describe my plan with enough detail that those helpful souls that want to can tell me if it looks like it will work or if it needs improvement. I plan to keep 3 standard laying hens (the most my city allows). My wife had chickens as a kid and is worried they're going to smell up the backyard. I designed my coop to be easy to clean to hopefully keep that from being a problem. There will be a secure attached run that they'll have access to during the day with pine shavings that can be changed to keep the smell to a minimum as well. I took a lot of ideas from the Eglu Like the Eglu, it will essentially be nothing more than a bedroom for the hens. Feed and water will be in a separate covered area of an attached run, so the coop itself is pretty small at 32"W x 32"L. It's 32" high in the front and 24" in the back. Also, it will be on 6" legs that aren't shown here. My current plan is that the hens will spend their days in the protection of the run, "free range" around the backyard when I'm home, and presumably only go in the coop to lay and sleep. Building material will be 3/4" ply because that's what I have around. The slideout tray is sheet metal. The roosts are wood 2x2's. The roof may be made from some leftover hardibacker board framed by 2x4's. The indentation in the middle may be planted for a green roof, but that might make the roof to heavy to easily remove for cleaning. That's all I can think of. I'm as green as they come in all this, so I appreciate opinions. Thanks.