A = Length of animal from the nose to the base of tail.
B = Height from the ground to the elbow joint.
C = Width across the shoulders.
D = The height of the animal in a natural standing position from the top of the head or the tip of the ear, whichever is higher.
For dogs or cats traveling international or short nosed dogs determine the kennel size by:
Length = A + B
Width + C = 1 IN. (3cm) x 2
Height = D + 3 IN. (7cm)
For all other dogs and cats use:
Length = A + 1/2 B
Width = C x 2
Height + D