WeightThe breed standards by European FCI and American Kennel Club specify minimum weight of 100 lbs for a female and 115 lbs for a male. There is no formally stated maximum weight but dogs must be balanced with regard to their overall type and the conformation standards of the breed.
HeightThe standard states that the desirable height, at maturity, should range between 23½ inches to 27 inches (58-67.5 cm) for male dogs and from 22½ inches to 25½ inches (57 cm-65 cm) for females. Deviation from these margins is considered a fault.
The massive head is a crucial breed characteristic. The Dogue de Bordeaux is claimed to have the largest head in the canine world, in proportion to the rest of the body. For males the circumference of the head, measured at the widest point of the skull, is roughly equal to the dog's height at the withers (shoulders). For females the circumference may be slightly less. When viewed from the front or from above, the head of the Dogue forms a trapezoid shape with the longer top-line of the skull, and the shorter line of the underjaw, forming the parallel sides of the trapezoid. The jaw is undershot and powerful. The Dogue should always have a black or red mask that can be distinguished from the rest of the coat around and under the nose, including the lips and eye rims. The muzzle should be at most 1/3 the total length of the head and no shorter than 1/4 the length of the head, the ideal being between the two extremes. The upper lips hang thickly down over the lower jaw. The skin on the neck is loose, forming a noticeable dewlap, but should not be excessive like that of a Neapolitan Mastiff. Small pendant ears top the head, but should not be long and houndy.