Shih Tzu:
- Male: 9 to 16 pounds (4 to 7 kilograms)
- Female: 9 to 13 pounds (4 to 6 kilograms)
Lhasa Apso:
- Male: 12 to 18 pounds (5 to 8 kilograms)
- Female: 10 to 16 pounds (4.5 to 7 kilograms)
Considering these weight ranges, a Shih Tzu Llasa cross could potentially fall somewhere in between or have a weight closer to one parent breed than the other. It is important to consult with a veterinarian or a responsible breeder for information on the specific size and weight characteristics of a Shih Tzu Llasa cross, taking into account the individual dog's circumstances and genetics.