The three parts of the Federal Reserve System are the Reserve Banks, the Federal Open Market Committee (FOMC), and the: ABoard of Governors BUnited States Mint CDepartment of the Treasury DSecretary of State.
The standard overhang of an island countertop -- on the side designed to sit at and tuck stools underneath -- is 12 inches. If you plan to extend the counter farther, you need to add supports such as legs, or wood corbels or metal L-brackets that extend half the overhangâs distance.
I typically allow 300 - 350mm overhang for breakfast bar areas. You can get away with less but you'll be kicking the back of the units a bit more and may not be able to tuck stools away completely. Typical overhang of worktop on the door side is 20-25mm.