The minimum height of Mastiff breed in 25 inches and the maximum is 30 inches. The height is far taller than the average height of all the breeds of dogs. The weight of the dog is between 132.2 pound and 154.3 pound. The average life of the dog is far less than the average age of all the breeds. The expected life is between 8 to 10 years.

They are independent in nature. They are usually not safe for the children. Italy is the origin of that breed. They are available in two colors i.e black and gray. Sometimes mastiff is also called English Mastiff or old English Mastiff.  It is one of the heaviest breed of the dog. They are flatulent in nature.