A balance support dog should be at least 45% of the person’s height and 65% of the person’s weight. A 6 foot tall man needs a 30” dog. This puts stability at the person’s fingertips. Great Danes are well suited to home and office life. The fact that Danes require less exercise than many breeds is a good fit for some people with disabilities. Danes are content to have a few walks every day and then nap in the corner until their services are needed!