Puppy Adult Size?

[daniffmom]

I've recently adopted a puppy from my local humane society. The shelter guessed he is a boxer mix, but their vet thinks he is more likely a Daniff. Great Dane/Mastiff. He is almost 3 months old. He weighs 27lbs currently, though the vet said he is thin and should weigh around 32lbs. He is about 13in. tall. I'm wondering, based on this, how big he should be as an adult. Obviously, he will be a large dog, and that's fine.

[daniffmom]

According to the vet, he will be roughly 32in tall and 115lbs!

[Maddies_Mom16]

Hi... I'm trying to figure that out with a 3 month old puppy I got from my local shelter! We think mine's a chiweenie, and it's been my vets experience that puppies double their size from what they are at 4 months.

[Margot49]

Well, without researching growth charts on those breeds, from the size of him now and those feet, he is going to be a big boy but