A Pembroke Welsh Corgi-Boxer mix is slightly larger than a purebred Pembroke Welsh Corgi. This mix typically inherits the short stature of the Corgi, but stands one to two inches taller than a purebred Corgi. It usually weighs a little more as well.
An adult Pembroke Welsh Corgi will stand around 10 to 12 inches at the withers and weigh 24 to 30 pounds. An adult Boxer will stand 21 to 25 inches at the withers and weigh 53 to 70 pounds. A Corgi-Boxer mix often has a medium-length coat, a long muzzle and ears that tend to hang down.