Parents, gender, and generation can be some of the most significant size determiners for Sheepadoodles. The smaller the parents, the smaller the Sheepadoodle, and the larger the parents, the larger the Sheepadoodle.
If you buy your Sheepadoodle from a breeder that offers size estimates for their litters, you can expect a female to fall at the bottom of the size range or a male to fall at the top of the size range.
First-generation Sheepadoodles are called F1 Sheepadoodles. These Sheepadoodles are the result of breeding an OES with a Poodle. The resulting puppies are the second generation and are called F1b Sheepadoodles.