Lucifer, Clearly I work for an airline that buys carts at a boot sale as they are several different sizes on each aircraft! The only consistency are the universal carts found on the a319/20 and the 777.Not all of our bar carts on those fleets are universals though. On other a/c we can have 4 different width carts that ANNOYINGLY fit only in specific places which makes for a fun game of bumper carts before landing! I posted some other suggestions on the tech log where our silly...oops...sicksquid moved it for a while. Please no knucklebuster handbrakes on the carts!