Height: Male 25-27 inches, females 24-26 inches
Weight: Male 110-133 lbs, females 100-120 lbs
Coat: The Bullmastiff has a short, dense, slightly rough, giving good weather protection.
Color: The Bullmastiff coat comes in brindle, fawn or red often with black markings on the head
Appearance: The Bullmastiff is massive, very powerfully built, but is not a cumbersome dog. The large, broad skull is wrinkled and the muzzle is broad, deep and usually darker in color. The forehead is flat and the stop is moderate. The black nose is wide and has large nostrils. The teeth meet in a level of undershot bite. The medium sized eyes are dark hazel. The V-shaped ears are set high and wide carried close the cheeks giving a square appearance to the skull. The strong tail is set high, thicker at the root and tapering and is either straight or curved, and reaches to the hocks. The back is short, straight and level between the withers and the loin.
Temperament: The Bullmastiff is a devoted, alert guard dog, with a good natured temperament. Docile, affectionate, but fearless if provoked. Although unlikely to attack, it will catch an intruder, knock him down and hold him. Bullmastiff is tolerant of children. Intelligent, even tempered, calm & loyal. These dogs crave human leadership. The Bullmastiff is extremely powerful and needs a firm master, who is confident and consistent with the rules set upon the dog. Bullmastiffs should be thoroughly obedience trained and taught not to pull on the leash, to heel, and allow owner to enter & exit door/ gate first as pack leader. Be sure to socialize the Bullmastiff around other dogs & people. The Bullmastiff is more dominant than the Mastiff. They tent to drool, slobber & snore. Bullmastiffs are sensitive to voice tone and need to be spoken to in an assertive, but not harsh way.
Health: The lifespan for a Bullmastiff is generally from eight to 11 years. The Bullmastiff is prone to cancer, hip dysplasia, tumors, eyelid problems, Progressive Retinal Atrophy (PRA) and boils on the lip. Also prone to bloat, so it is a good idea to feed them 2-3 meals a day instead of one large meal. Gains wight easily, so be careful not to over feed.