[The Scottish Terrier] ought, therefore, to be of active movement and powerfully built. This necessitates in one so short of leg, liberty of movement, so he should not be so short in back as to confine his action nor should the back be long enough to weaken the propelling power of the hind quarters.

1. Correct rib spring. Ribs must spring almost straight out from the spine and then curve inward.
2. Correct length of rib cage. Ribs must extend well past the halfway point of the body.
3. Correct forechest. Forechest must extend in a gentle, oval shape in front of the point of shoulder and must be well filled-in.
4. Correct brisket. Brisket must hang between the front legs.
5. Correct loin. Loin must be broad and muscular. It should be short but a little extra length can be forgiven. A thin, weak loin is a serious fault.
6. Correct topline. Topline must be firm and level, standing or moving.