The Diehard presents as a small dog with a personality and physical presence that immediately communicates more substance than its actual size would suggest. Standing approximately 10 inches at the withers and weighing somewhere between 18 and 22 pounds depending on sex, the Scottish Terrier is compact and dense, built with the muscularity of a dog that was designed to work underground in Scottish terrain. Pick one up and you discover how solid it actually is beneath all that coat.
The head is large relative to the body and is one of the most distinctive features of the breed. It is long in proportion, with a flat skull that shows a slight stop. The muzzle is approximately equal in length to the skull. The jaws are powerful and the teeth should meet in a scissors bite. The nose is large and black. This is a head built for working - the jaw power is functional, not ornamental, and the length of muzzle accommodates a grip that terriers relied on underground.
The ears are small, pointed, and carried fully erect. They are set reasonably high on the skull. The texture of the ear leather should be fine, and the ears are covered in short, velvety hair of a finer quality than the body coat. These upright, alert ears contribute significantly to the Scottish Terrier's characteristic expression, which is simultaneously serious and keen.
The eyes are small, almond-shaped, and set wide apart under prominent brow furnishings that are one of the breed's most recognizable features. The brow, when the coat is in proper condition, gives the face a hooded, intense quality that becomes more pronounced with correct coat growth and trimming. Eye color is dark brown.
The neck is moderately short, muscular, and set into well-laid-back shoulders. The topline is level. The chest is moderately broad and the brisket is well let down between the forelegs. The body is compact and well-ribbed up. The back is quite short compared to some other terrier breeds, which contributes to the cobby, substantial look of a well-put-together Scottie. The hindquarters are muscular and well-angulated. The tail is of moderate length, thick at the base, carried upright or with a slight curve forward.
The feet are round and compact with thick pads, built for traction on rough terrain. The forelegs are heavy-boned and straight. The overall impression is of a small dog with genuine structural substance, not a fragile companion but a working terrier in a compact package.
The double coat is the breed's most distinctive physical characteristic. The outer coat is hard, dense, and wiry - not soft, not wavy, not smooth. It provides serious weather resistance. The undercoat is softer and dense. Colors are black, wheaten in various shades from pale cream to golden, and brindle in combinations of black and tan. In show condition, the coat is hand stripped - dead outer coat is plucked by hand or with a stripping knife to maintain the harsh texture. Clipped coats are common in companion dogs but typically produce a softer coat texture over time that lacks the breed-correct hardness.
The overall picture of the Diehard in good condition is of a compact, sturdy dog that looks capable - because it is. There is nothing delicate or ornamental about the correctly built Scottish Terrier. The bone is heavy, the musculature is real, and the coat is functional. The distinctive outline created by the long head, upright ears, well-furnished beard and eyebrows, and level topline is immediately recognizable and unlike any other terrier breed. Judges and longtime breed enthusiasts often describe the correct Scottie as looking like a dog that could actually do its job, which is the highest compliment you can pay a terrier bred for work.
Affectionate With Family
★★★☆☆
The Diehard is devoted to its household in a dignified, self-possessed way. Affection is offered on the dog's own terms rather than as a constant demand, and that suits many owners just fine.
Good With Young Children
★★★☆☆
Best matched with older children who respect the Scottish Terrier's space and independent nature. Very young children who grab or startle this confident little dog can provoke a sharp response.
Good With Other Dogs
★★☆☆☆
Same-sex aggression is documented in the breed and same-sex pairing requires careful management. The Scottie's confident nature means it rarely backs down from a confrontation with other dogs.
Shedding Level
★★☆☆☆
The wiry double coat sheds minimally compared to many breeds, making the Scottie a reasonable choice for households that prefer to keep dog hair off furniture and clothing.
Coat Grooming Frequency
★★★★☆
The wiry coat requires hand stripping to maintain its correct harsh texture for show purposes, or regular clipping for companion dogs. Either way, the coat needs consistent professional attention.
Drooling Level
★☆☆☆☆
Dry-mouthed and tidy. Drool is not something Scottie owners spend any time thinking about.
Coat Type
★★★★☆
The wiry, hard outer coat is a defining characteristic of the breed - dense and weather-resistant with a softer undercoat beneath that provides insulation.
Openness To Strangers
★★☆☆☆
The Scottish Terrier is not a dog that warms up instantly to new people. Reserved and watchful on first meeting, it takes time to accept strangers as part of its acceptable circle.
Playfulness Level
★★★☆☆
Energetic in bursts and genuinely playful when the mood strikes, though the Scottie also has a dignified quality that keeps it from being the most exuberantly playful dog in the room.
Watchdog/Protective Nature
★★★★☆
Alert, vocal, and unintimidated by things considerably larger than itself. The Diehard takes its watchdog responsibilities seriously and announces visitors with confidence.
Adaptability Level
★★★☆☆
Adapts reasonably well to varied living situations given adequate daily exercise and mental stimulation. The Scottish Terrier is more flexible than its stubborn reputation suggests when its basic needs are met.
Trainability Level
★★★☆☆
Intelligent and fully capable of learning what you are asking, but inclined to evaluate whether compliance is worth its time. Training requires patience, consistency, and a sense of humor.