We have a 3'x7' three- sided coop attached to a 10'x12' pen. I don't have the exact numbers but I think it was $300 for wood, $200 for hardware cloth, $200 for galvalume roof. We had siding and dirt. So that's $700 without labor. $1000 contractor built actually sounds reasonable, depending on the quality of materials (hardware cloth vs chicken wire, etc.).