How big do Terrier mix dogs get?

How big do Terrier mix dogs get?

Terrier Mix Appearances These pups come in all shapes and sizes, ranging from around four pounds for a tiny Yorkshire Terrier Mix to 70 pounds or more for an Airedale Terrier Mix. Terrier Mixes may take on the appearance of one parent more than another and have a long, short, wavy, or smooth coat.