Originally Posted by math ace
It looks like standard 2 x 4 welded wire. Here is a link to a roll of it at Tractor supply. http://www.tractorsupply.com/welded-wire-fencing/welded-wire-36-in-x-50-ft--3626512
You can find it at Home Depot, Lowes, and other hardware / home improvement stores. It comes in all kinds of widths" 36", 48", etc.
Also, I overlay it with chicken wire on the bottom couple of feet of the pens. I do that to keep predators from reaching right through the fence with tiny paws and grabbing my birds. I, also, overlay it with chicken wire to keep roosters outside or next to the fence from tangling with the ones inside the fence :)
I just bought a 50' roll of 5' high 2" x 4" welded wire, galvanized, at Home Depot, in our town they were the cheapest at just under $1 per foot linearly (with tax about $46). I got it to enclose my new grow out pen. It isn't quite finished but my family saw that with my work schedule I would not have it finished for at least two more weeks and put up the wire for me and used a pen splitter (16' dog exercise pen) to make a temporary door. They even transfered the young birds for me yesterday!
Math ace - Do you use regular chicken wire on the bottom parts? I was checking out the job my family had done late last night when I got home and was suddenly worried about raccoons. I was thinking I would need finer mesh wire like 1" X 1/2" wire to put around the bottom two feet or so. I don't have worry about other roosters as they are all penned together at this point.
Will have to put up new photos as my SS will be 16 weeks next week. That means it is time to weigh them again! Just old enough to go to the County fair, also next week. I have entered two pullets and one cockerel. The other two pullets and one of the cockerels have less white so I'm thinking that they will be my breeding birds.