Compared to a typical large breed dog, Great Danes are significantly larger. They’re categorized as XL or even XXL. Some Danes have weighed more than 200 pounds. A mature Great Dane standing on his back legs can reach a height of more than six feet! The record-holder for the world’s tallest Great Dane, Zeus, stood 41 inches tall (and over 7 feet when standing on his hind legs). According to the Great Dane Club of America, “your puppy will grow as much in his first year as a child grows in fourteen years.