Hubby said he doesn't have a clue until he looks at his receipts. I know it wasn't anywhere near what that Carolina coop would have cost me. He used 4x4s, and 2x4s all treated on the outside 19gauge rubber coated 1/4" hardcloth. We rented a 24" ditch digger and buried another roll of hardcloth...
We gave them 9" in the back. It they turn around to look out the windows they have 8" before the poop hits the floor. Hubby wanted to make it 4' wide and I said no I'd never be able to lean in the door to clean it. I still have to lean in as it is.
Not to shabby for a 63 yr old man who's job is to sit at his desk all day and give orders! I'll keep him around...;)
My son just bought a new home and he asked him to build a new shed for him so he said he will practice his carpenter skills on my coop.
Here is the new coop hubby and I built after I saw and loved the Carolina coop! We didn't have any plans at all just winged it from photos and he you tubed some construction info as he needed to.