We have a shed on our property that we will be repurposing into a chicken coop. It sits on a concrete pad that we would like to enclose to make a chicken run. They will free range during the day, but I'd like to leave the pop door open into the run at all times so they aren't stuck in the coop (not much of an early bird). My husband wants to run 1/2" Hardware Cloth three feet up from the concrete and then use some sort of galvanized fencing that was left on the property by the previous owners. I don't know the dimensions off hand, but I believe it is large enough for me to squeeze a hand through. Is this safe? The run will also have a roof overhead. We live in MN so not a lot of predators. We do have raccoons, skunks, possums (?), mice, etc. Thoughts?