The American Kennel Club doesn't formally recognize a crossbreed between a boxer and bull terrier, but it's fine if these two pups get together. Most often called a bullboxer or box terrier, it's a good bet you'll end up with strong, sturdy dog even without an official breed name.
A Good Mix
A dog who's a boxer-bull terrier mix will likely give you a dog who's at least 21 inches tall at the shoulder and weighs a minimum of 50 pounds, which is the size of the females of both breeds. Male boxers tend to be larger than bull terriers, weighing 65 to 80 pounds and standing between 22 and 25 inches tall. Both breeds are muscular dogs, so your bullboxer will also be a strong fellow. If he takes after his bull terrier parent, he may be a bit longer than he is tall, unlike the squarely built boxer. His face could be memorable: The bull terrier has an interesting profile because of his egg-shaped head, which is in contrast to the boxer's jowly profile. Overall, both dogs are playful, energetic and devoted to their families.