The Scottish Terrier is a small, compact, short-legged, sturdily-built dog of good bone and substance. His head is long in proportion to his size. He has a hard, wiry, weather-resistant coat and a thick-set, cobby body which is hung between short, heavy legs. These characteristics, joined with his very special keen, piercing, "varminty" expression, and his erect ears and tail are salient features of the breed. The Scottish Terrier's bold, confident, dignified aspect exemplifies power in a small package.
The head should be long in proportion to the overall length and size of the dog.The nose should be black, regardless of coat color, and of good size, projecting somewhat over the mouth and giving the impression that the upper jaw is longer than the lower. The teethshould be large and evenly spaced, having either a scissor or level bite, the former preferred. The jaw should be square, level and powerful. The eyes should be set wide apart and well in under the brow. They should be small, bright and piercing, and almond-shaped not round.
The body should be moderately short with ribs extending well back into a short, strong loin, deep flanks and very muscular hindquarters. The ribs should be well sprung out from the spine, forming a broad, strong back, then curving down and inward to form a deep body that would be nearly heart-shaped if viewed in cross-section. The topline of the back should be firm and level. The chest should be broad, very deep and well let down between the forelegs. The forechest should extend well in front of the legs and drop well down into the brisket. The chest should not be flat or concave, and the brisket should nicely fill an average man's slightly-cupped hand. The lowest point of the brisket should be such that an average man's fist would fit under it with little or no overhead clearance.
The shoulders should be well laid back and moderately well knit at the withers. The forelegs should be very heavy in bone, straight or slightly bent with elbows close to the body, and set in under the shoulder blade with a definite forechest in front of them. Scottish Terriers should not be out at the elbows. The forefeet should be larger than the hind feet, round, thick and compact with strong nails. The front feet should point straight ahead, but a slight "toeing out" is acceptable. Dew claws may be removed.
The Scottish Terrier should have a broken coat. It is a hard, wiry outer coat with a soft, dense undercoat. The coat should be trimmed and blended into the furnishings to give a distinct Scottish Terrier outline. The dog should be presented with sufficient coat so that the texture and density may be determined. The longer coat on the beard, legs and lower body may be slightly softer than the body coat but should not be or appear fluffy.
The thighs should be very muscular and powerful for the size of the dog with the stifles well bent and the legs straight from hock to heel. Hocks should be well let down and parallel to each other.