I've been working on building my first coop, and so far it's all from materials I already had. Most of it was from previous projects, but I found the galvanized pipe next to a dumpster a couple years ago.
First, I gathered the wood and metal that I had to work with;
Then I started seeing what I could put together with the metal, to make a frame;
I mounted the plywood, that would be the poop board and the base for the nest boxes and roost;
Next, I made the nesting boxes;
I mounted the boxes, and built a ramp;
I'm trying to figure out how I want to do the roof, door etc. but I figured it would be better to make the short end taller. It'll create more headroom for the chickens and for me. That's almost all the materials I had, so I need to plan what I want to do ahead of time for the rest of it.
Progress is slow, but I'm still working on it. This is from today, 2-7-2012