Metal shed coop design help !

[robby]

Hello, well I am going to be building a coop from a old metal shed, its about 4 ft wide maybe 5 or 6 feet long and has a floor already, I have somewhat of a run already build were my month old chicks are right now, I was wondering if anyone else has done this or does anyone have ideas or concers, i live in ontario so the weather can get down to - 30 on a bad day and it also can get very warm

Thanks robert