30 lbs give or take
My boxer beagle is just pushing 25 pounds full grown.
I have an adult boxer/beagle in good shape and she's a wonderful 37 lbs. Compact, and perfect for a small apartment.
I have a boxer beagle puppy, just short of 4 months old, and he's already 25 lbs, and lots of loose skin to grow into.
I have a boxer/beagle and he is just 6 months and is about 25 pounds but the vet thinks he will get to be 40-45 pounds.
I have a three year old Boxer/Beagle mix who is a solid 50 pounds.
My boxer/beagle mix is 20 months old, been a steady 56 lbs. For the past year.