The Berkshire is a black pig with a pinkish skin, and a little white on the nose, forehead, pasterns, and tip to the tail.
The withers may be moderately high and thin; the chest well developed, but not too wide or deep; the shoulder should lie well on the chest, and be oblique and well covered with muscle, so as to reduce concussion in galloping; the upper and lower arms should be long and muscular; the knees broad and strong; legs short, flat and broad; fetlock joints large; pasterns strong and of moderate length; the feet should be moderately large, with the heels open and frogs sound - with no signs of contraction.
The points of chief importance are a fine, clean, lean head, set on free from collar heaviness; a long and strongly muscular neck, shoulders oblique and covered with muscle; high, long withers, chest of good depth and narrow but not extremely so; body round in type; back rib well down; depth at withers a little under half the height; length equal to the height at withers and croup; loins level and muscular; croup long, rather level; tail set on high and carried gracefully; the hind quarters long, strongly developed, and full of muscle and driving power; the limbs clean-cut and sinewy, possessing abundance of good bone, especially desired in the cannons, which are short, broad and flat; comparatively little space between the fore legs; pastern joints smooth and true; pasterns strong, clean and springy, sloping when at rest at an angle of 45°; feet medium size, wide and high at the heels, concave below and set on straight.
This breed is growing rapidly in favour in Canada, but in the United States the Percheron, with its round bone and short pasterns, holds the field.
The forelegs should be straight with strong pasterns and set well under the body.