I own a boxerador (boxer/lab mix) and at 3 months he be 19 pounds i needed to know how big will he attain ?
Take the freight at 4 months and double it.
If that number is or more than 100 lbs, add 10 %.
If that number is less than 10 lbs, subtract 10 %.
That will get you pretty close to the mature weight at 18 months after the dog has filled out.
I assume if your dog weighs 19 lbs at 3 months, your dog will be about 40-50 lbs full grown. That seem very low for a Boxer / Lab mix so I wonder if that is really what you enjoy.
You hold a boxer lab mix. There is no such think as a boxerador, if you bought one from a "breeder" you were surely suckered out of your money.
There is no standard size. He is a mutt.
It's hard to tell beside a cross bred dog how it will turn out. His genetics will determine whatever size he will grow to be.
Don't let him gain overweight though.
Boxers and Labs are both larger dogs. I would voice that you could be looking at 50 to 75 pounds