Fitness balls come in a range of sizes and selecting the right ball for your dog is important. NATE and ATA specify ball sizing by dog height at the shoulders/chest. If you don’t know your dog’s height check our post on how to measure.
NATE rules provide a range of ball sizes based on heightt.
| CLASS | DOG HEIGHT | BALL SIZE | BALL SIZE ALLOWABLE RANGE |
| Mini | 9” (22.5 cm) & under | 25 cm | 18 cm (7 inches) up to 30cm (11.5inches) ** lighter weight balls may be used |
| X-Small | Over 9”(22.9 cm) up to 14” (35.5 cm) | 35 cm | 30 cm (11.5 inches) up to 40cm (15.75 inches) |
| Small | Over 14” (35.5 cm) up to 18” (45.7cm) | 45 cm | 40 cm (15.75 inches) up to 50 cm (19.75 inches) |
| Medium | Over 18” (45.7 cm) up to 22” (55.8 cm) | 55 cm | 50 cm (19.75 inches) up to 60cm (23.5 inches) |
| Large | Over 22” up to 26” | 65 cm | 60 cm (23.5 inches) up to 70cm (27.5 inches) |
| X-Large | Over 26” (66 cm) | 75 cm | 70 cm (27.5 inches) up to 80cm (31.5 inches) |
American Treibball Association says the ball should be at the dog’s shoulder/chest level and recommends the following ball sizing
21.5″ = 75 cm (Giant Breeds)
19.1″ = 65 cm (Large Breeds)
17.5″ = 55 cm (Medium Breeds)
15.5″ = 45 cm (Small Breeds)
13″ and under = 35 cm (Toy Breeds) use kid’s play balls from the toy section of any retailer.