MEET THE BREED

AKC Official Standard of the Staffordshire Bull Terrier

General Appearance: The Staffordshire Bull Terrier is a smooth-coated dog. It should be of great strength for its size and, although muscular, should be active and agile.

Size, Proportion, Substance: Height at shoulder – 14 to 16 inches. Weight – Dogs, 28 to 38
pounds; bitches, 24 to 34 pounds, these heights being related to weights.

Temperament: From the past history of the Staffordshire Bull Terrier, the modern dog draws its character of indomitable courage, high intelligence, and tenacity. This, coupled with its affection for its friends, and children in particular, its off-duty quietness and trustworthy stability, makes it a foremost all-purpose dog.

Approved November 14, 1989 Effective January 1, 1990. 

Full standard can be found here AKC.org

A wonderful Illustrated Standard can be found at The Stafford Knot, here.