Terriers whose heights measure either slightly larger or smaller than the ideal are not to be penalized in the show ring provided other points of their conformation, especially balance and chest span, are consistent with the breed standard. The weight of a terrier in hard working condition is usually between 13 - 17 lbs. Proportion Balance is the keystone of the terrier's anatomy. The chief points of consideration are the relative proportions of skull and foreface, head and frame, height at withers and length of body. The conformation of the whole frame is indicative of strength and endurance.
Dark rims are desirable.
Fold is level with the top of the skull or slightly above. When alert, ear tips do not extend below the corner of the eye. The stop is well defined but not prominent. Hound ear, fleshy ear, rounded tips. Liver color nose.