More to explore:
Open Air Coop - BackYard Chickens Community
Open air pen (coop and run in one) for 12 chickens! Sweet and Cheap!!
chicken coop pallet
"Room w/a View" chicken coop
Cheap and Easy Coop Shade Trellis
sliding doors in chicken coop; this make perfect sense, less space than swinging open the door.
Chicken Coop - DIY - Cheap and Easy - A Different Perspective
Large Chicken Coop from scraps. Super cheap!
Brilliant! I want to do this. (DIY automatic chicken POP door opener/closer)
Cheap chicken house idea
Maran Pallet Coop II - from Fat Matt's Poultry Farm - BackYard Chickens Community
The door's lower edge sits a ways below the bottom of the outside opening when closed, so that raccoons and other pests will have a hard time getting their paws under it to open the door from the outside.
Chicken coop with lots of light and air...and style. Imagine this in different colors, though the red is great.