Hi all, I'm working on my run, which will be 15x15', with one wall being the cinderblock exterior of my barn. That gives me 45' to fence in, less the door. The wall is 6' tall, which is tall enough for me to walk in if I make the fence to match the height, or I could make it a bit taller, and just bridge the gap down to the gutter of the barn. My questions, to start, are: Is a galvanized 14-gauge heavy duty utility fence with openings measuring 4 inches high by 2 inches wide a good material for the fencing? What if I use that for the top 3' and a .5" hardware cloth for the bottom 3 feet? I see sometimes folks line utility fence with chicken wire. Why? Are 2x4" posts sufficient, or should I get 4x4"s? How deeply should I bury them? Any great ideas for connecting my fence to the wall? How does one attach anything to cinderblocks? What material makes a good top? I'm got to keep out hawks. Racoons probably not out during the hours the chickens will be in they yard, but I don't mind being extra cautious if I can afford it.