hi everyone, we need help with this one. my wife and i have built a beautiful coop for our 19 chickens now it's time to build the run and we are styimed. the run is going to come off the front of the house and make a rectangle that measures30' long by 15' wide. We sank metal posts every 5' and it looks good. we went to wire it, and the fencing sags and is not tight. also, do we want to bury the fencing a foot or so? please help us out. thank you vinnie poch