I was looking for some used creep feeders and figured I needed about five since I move my cows around a lot. Decided to make my own. Just takes a couple of cattle panels and a few tposts. This size feeder accomadates 15 to 20 small calves. you can increase the capacity by adding panels. I have made a couple of larger ones usiing a single strand of hot wise set high enough for the calves to pass under. Works great.