For Full-Grown Dogs
This is the BEST method for full-grown dogs. Measure your dog as follows:
Length -- when the dog is lying down, the distance from rump to nose or toes, whichever is the longest.
Height -- from top of head to the floor when standing.
Width -- keyed to length of cage.
Ask your breeder or pet store where you purchased your dog for an estimate of the size and type for full grown dog.