Here is the answer for most Hobby Beekeepers with more than a few colonies! This little beauty can extract 9 of either size super frame (5 3/8" or 6 1/4"). Add the additional cages which are included and you can extract 3 each 9 1/8" frames tangentially. The barrel has a diameter of 25" and is also 25" tall. The legs get it up off the floor and make it a breeze to secure to the floor. The steel helical gear drive box makes this extractor very easy to crank and is heavy duty.