what are keg sizes
There are 4 main sizes of commercial kegs that are used regularly. Sixth Barrel, Short/Quarter Barrel (AKA Pony Keg), Slim/Quarter Barrel, and the Half Barrel. 1  Sixth Barrel (23.3â³x9.25â³D) | 55 -12oz.  Short/Quarter Barrel (14.8â³x16.125â³D) | 82 -12oz.