I used 1/4 Inch hard ware Cloth on the floor of my Raised rabbit hutch ( Plywood in there enclosed part ) I then used 1/2 x 1 " for the windows ( I also have screens and glass that I can close ) and I used the same wire for the bottom of the coop, I have a raised coop and have a tiny run underneath for bad weather days or when i wont be around. The 1/4 Hardware cloth is very hard to see though and is not very strong, but is easier to work with.