Mastiffs are described as courageous, dignified, and good-natured dogs who are categorized in the working group of dog breeds. They come in a few different coat colors including fawn, brindle, and apricot. Mastiffs have an easy to care for coat, but they still do shed quite a lot compared to other dog breeds. They are considered a large dog breed with a height ranging from 30 inches and up for the males, and 27.5 inches and up for the females. They have an average weight of 160-230 pounds for the males, and 120-170 for the females. They have a life expectancy of 6-10 years.