Both of my dogs are jumpers. Baby gates need not apply. Chester can jump straight up on to the dining room table!!! With our new puppy, I don't know if I will be able to get a Christmas tree this year. He will pee all over it, I have no doubt, and I don't know how to block it off from him. Chester I trust, but my puppy (chihuahua/pomeranian/rat terrier) has all the worst qualities from each of those breeds. I didn't think 11lb dogs could do the high jump!!