Not necessarily. It really depends on the weight of the parents and the weight of the puppy in the beginning weeks of its life. We do our absolute best to give you an estimation of the puppy's adult weight. We use growth charts, the weight of the parents, and continue to give updated estimated weight ranges until you pick up your puppy. I am typically pretty good with my estimates but with Pomsky’s being a hybrid breed with such a large variance of size there is always a chance of there being different growth rates than expected. It can be seen, as you go down the generations from F1 to F3 and the many other variations, that the sizes of the pomskies become smaller. However, again, it really depends on the puppy and its parents. Below is a chart to help you understand the generations: