My sister has a Great Dane. He is SO big, that when standing on his hind legs, he can easily tower over her kitchen island and so she has to remind him to NOT steal stuff off of it. Even on all four paws, his head comes up to her waist, and she's 5 ft 6 inches tall. She's not a short person. Those dogs, for all they're docile and very gentle for their size, the sweet goofs, are HUGE!