Bartlett's Kennels

Size of a pomsky
Toy- typically 5-9 pounds and under 10” at the shoulder.
Mini over 9 pounds and up to 15” tall.
Standard 15-18” tall and generally between 18-25 pounds. 

But like any cross breed they could grow bigger or smaller.

(F1) A First Generation Pomsky 50% Siberian Husky and 50% Pomeranian, one parent usually the mother is 100% Siberian Husky and the other parent usually the sire is 100% Pomeranian breeding f1 pomskies the other way round could be very dangerous for the mother due to a Pomeranian being smaller in size.

(F2) Pomsky The mother is an F1 Pomsky and the sire is also an F1 Pomsky it is allot easier to predict the size the f2 pomsky puppies will grow as unlike the f1 pomsky parents the f2 pomskies both parents tend to be much more compatible in size to breed.

(F3) Pomsky just means that The mother is an F2 Pomsky and the sire is also an F2 Pomsky the f3 pomskies should grow the smallest out of the three as with my experience they get smaller with every generation we have bred.