Hi Russ,
I built my first coop and run last year, and it really helped me to look at lots of other people's coops and reasons for their designs on line first. After reading about and looking at lots of coop pics, I put a linoleum floor in my coop, that I cover with an absorbing material that the poo drops on. It is really practical. The coop is where the hens sleep at night mostly, on a roost. The coop needs to primarily have:
- a roost of the right size and width (mine is covered with a bike inner tube, for comfort!)
- adequate ventilation, near the ceiling, covered with hardware cloth
- easy cleaning: design big doors that give you access to the floor of the coop
-adequate space per hen
- nesting boxes (mine are often in their run, I live in a warm climate, but most people have their nesting boxes in the coop)
-water and food
Good luck, and have fun!