EX SMALL..... 10-12" back length; Neck to base of tail.
14-17" side length; Center of chest to center tail.
Example: Jack Russell, Boston Terrier
SMALL ...........12-14" back length; Neck to base of tail.
18-21" side length; Center of chest to center tail.
Example: Beagle, Cocker Spaniel
MEDIUM ........ 15-18" back length; Neck to base of tail.
22-25" side length; Center of chest to center tail.
Example: Eng. Springer, Aust. Cattle, Border Collie
LARGE ........... 19-23" back length, Neck to base of tail.
26-30" side length, Center of chest to center tail.
Example: Boxer, Labradore, Golden Retriever
EX LARGE........24-28" back length, Neck to base of tail.
31-34" side length, Center of chest to center tail.
Example: Rottweiler, Lge. Doberman