DogLover as you no I have a big Goofey Boxer too. Max will jump over a 4 foot fence (My horses fence maybe its even higher hummmm) with ease. Right now I have a big dog kennel I keep them in while outside. The kennel is 10 feet high and have no problem with that I think a 7 to 8 foot stockade fence would be perfect. Thats what I plan on getting when we move to Pa next year.