According to the bullmastiff standard, the bullmastiff is fearless yet docile. The foundation breeding for the bullmastiff
was 60 percent mastiff and 40 percent bulldog.
The head should have a fair amount of wrinkle when alert. The forehead should be flat, and the muzzle should be broad
in comparison to the entire head. The nose should be black with large, broad nostrils. The bullmastiff's bite should be level or
slightly undershot. A dark muzzle on the bullmastiff is preferred. The eyes of the bullmastiff should be dark or hazel and of
medium size. The ears should be v-shaped and carried close to the cheeks. The neck should be slightly arched and very
muscular, almost as wide as the skull. Its body should be compact with a wide and deep chest. The shoulders should be
muscular and slightly sloping. Forelegs should be well boned and set wide apart. The bullmastiff's back should be short
making him look well balanced. The loins should be wide, muscular, and slightly arched. The tail should be set on high and
carried either straight or curved, though not like a hound's tail which goes up over the back. The coat should be short and
dense for good weather protection. The coat color may be red, fawn, or brindle. A small white spot on the chest no bigger
than an open palm is allowed, but any other white marking is a fault. Dogs should be 25-27 inches at the shoulder and should
weigh 110-130 pounds. Bitches should be 24-26 inches at the shoulder and weigh 100-120 pounds.
