The weight carrying capacity of dogs depends upon the breed of dogs. Like the Alaskan Malamute and Husky have much ability to carry heavy loads. Recent studies reveal that, on average, a dog can carry about 75 pounds. So, the total weight that your sled can carry depends on the number of dogs that your sled has. There is another study that indicates that a typical sled dog can carry about 1.25 times its weight.