The Mastiff is an extremely large dog both in height and girth who will consume enormous quantities of food. He needs a large house to live in and a large garden to roam in. In addition, he should have plenty of exercise. His coat is short and dense, requiring grooming once a week. He is generally a good-natured dog but can be protective of his owner. He is an exceptionally powerful dog and can be difficult to control. He needs a physically strong, dedicated and experienced owner. The Mastiff is not an ideal family dog.