Hi, I bought a 8x10 metal shed at Home Depot, 2 years ago it was on sale for $200 my DH put in 3 vents one on each wall and a vent that has a cover over it on the roof, (it has a screen type cover then a top on it) it looks like a chimney(sort of) I know I am not explaining it very well. In the winter we cover them with plastic and I just stuff a cloth in the roof one, from the inside. I leave the door partically closed in the winter and in the summer I leave it open and at night I close in the winter and my DH made a door that I put in the doorway that is covered in hardward cloth, that way they can get more air. It is hot even at night in Alabama. It is one of those buildings that you put together. We put a plywood floor and use shavings. It has worked great. We have not lost a chick. We also have a large covered run in front of the shed.