I'd be concerned about using metal - that will turn into an oven on a hot day unless they have installed some pretty heavy-duty ventilation system. Does it have windows at least?
I paid over $3K for the materials to build a 10 x 16 coop (thankfully, last fall, and I stored it away for spring) but it will be as sound as a house. This is just for lumber, hardware, and metal roof. I went to my favorite home improvement store which had a promotion that if you spent more than...