They can vary in size depending on the sex but my airedale (male) is fully grown and at a height of 65cm down and 100cm accross, but i have seen smaller ones before.
It is a dog breed that is the largest of the terriers. It most probably descended from the otterhound and Old English terrier which in now extinct. It weighs about 40-50 pounds and stands about 23...
Generally about a foot or less, but that all depends on what breed of Terrier you get. There are lots of different types, all generally staying around a foot and under.
Sometimes if the dog is willing to be trained (Sometimes dogs can be very energetic) but i taught my dog how to sit and she's 8 almost 9 so i guess you can teach an airedale terrier tricks.