GANA recognizes the adult measurements listed below, though they are still only approximations as several factors go into determining a dog’s size. Note that the height measurements are taken at the withers, or the front shoulders.
- Petite: height below 14 inches; weight less than 25 pounds
- Miniature: height range of 14 to 16 inches; weight range of 26 to 35 pounds
- Medium: height range of 17 to 20 inches; weight range of 36 to 50 pounds
- Standard: height range of 21 to 24 inches; weight range of 51 to 75 pounds