If you've got a Shih Tzu-poodle cross puppy, you might want how big your little guy will eventually grow. This hybrid dog, also known as the shih-poo or the poo-shih, usually remains a fairly small dog. The poodle parent is generally a toy or miniature, as breeders of these "designer dogs" aim for the small dog market. Still, there's always the possibility that your shih-poo may have a standard poodle parent, in which cause he may grow up to be a medium size canine. You won't have to wait too long to find out your puppy's adult size. He's fully grown by his first birthday.
Shih Tzu Size
The Shih Tzu falls into the American Kennel Club's toy group. The Shih Tzu breed standard calls for a dog standing between 8 and 11 inches tall at the shoulder -- preferably, between 9 and 10.5 inches -- and weighing between 9 and 16 pounds.
Although the poodle breed standard includes three different types, only size delineates the toy from the miniature and the standard. The toy poodle can't exceed 10 inches in height at maturity, while the miniature stands over 10 inches and not over 15 inches. The standard poodle is 16 inches or taller. The breed standard doesn't specify a weight limit, but weight and height are proportionate.
If your shih-poo is the conventional cross for poodle parentage, expect him to mature between 8 to 15 inches tall at the shoulder, weighing between 7 and 20 pounds. If his poodle parent was a toy, he should top out at the lower end of the range, and at the higher end if the parent was a miniature. If his poodle parent was a standard, he may grow up to stand more than 15 inches tall and weigh in excess of 20 pounds. Still, he shouldn't grow exceedingly tall because he does have the toy Shih Tzu influence.
Expect your shih-poo to share your life for the next 15 years or so. If he does happen to have a standard poodle parent, his life span may be a bit shorter, as the larger dogs age more quickly.