I believe that Jim and Jim are only sticking with the strict engineering definition of cantilever. Click to Enlarge 44.48 KB I've pointed out that the term cantilever, in building architecture, has been used as the name of the overhanging portion of a beam or truss for over 100 years. This includes well-known early published architects, engineers, university professors and Fellows of AIA, all considered experts by their piers and contemporaries. I hardly think they are among those of us who "jumbles up the terms". I've noticed a few words in the English language that have more than one definition. I've also noticed a few words now used in architecture, were earlier used to describe something completely different.