Start at the front of their chest and measure the distance to their rear. For their height, measure from the top of their shoulder blade to the base of their paw. Small fits most dogs up to 16.5" in length and 10" in height. Large fits most dogs up to 18.5” in length and 12" in height.
How do you measure a pet for an airline?
This is mark. Four. Once your assistance has made all the marks measure. From chalk mark one to the floor for the pets height measure from chalk mark 2 to chalk mark 4 for the pets length.