sure he'll end up at what he is now, about 26". very clever dog and learns quick ( quicker than me sometimes so its 2 steps forward and one back) . making good progress and i'm learning a thing or 2 just as quick. my first collie cross. always had beddy and dh crosses before. he gives it everything, some right acrobatics on the lamp and a dab hand at nicking the bunnys back through gates or stock fencing when they think they've got away