There are different approaches to the classification of dogs when it comes to their size. We will adhere to the following weight:
| Small dogs - up to 25 pounds (12 kg) | |
| Medium dogs - 25 to 50 pounds (12 to 22,5 kg) | |
| Large dogs - 50 to 100 pounds (22,5 to 45 kg) | |
| Extra large dogs - over 100 pounds (over 45 kg) |
