Pallet coop...Craigslist always has free pallets....
http://www.studiogblog.com/garden-inspirations/diy-projects/the-pallet-shed-using-recycled-materials-to-construct-garden-buildings/
I used dog kennels, dog houses....for coops...even a play house I found in a trash, just bought a can of spray paint, used fan grills....and I had a coop!!!
Started like this when pullets
To this when they got older, found it free, old broken fan, spray can paint...expense 4.00 for paint
Hurricane Ike hit us hard here in our area....we went around and got all the tin and privacy fence we could find...
and built this coop above...its 6"tall by 4ft deep and across is like 10' to fit the old dog kennel we had, the tin above for the roof also free picked that up with the privacy fence.
behind that Main coop we started building smaller coops, we did two side by side, this is a picture of the first one, then later we put one next to that one, I use these for smaller flocks or pullets
and we use branches we find and they love them!!!
so we use Craigslist; we look under: general, materials, free, household, farm/garden YOU NEVER KNOW WHAT YOU CAN FIND AND USE....