I really like the sheet metal box that came with the Boyer Flyer. Like most things Australian its lite, simple, and works real well. I don't know the specifics but its just thin galvenized sheet metal with the cover on top that any sheet metal shop should be able to knock together pretty cheap. From what I've seen the wood boxes are heavy, the FG boxes are Expen$ive and the boxes that open on the end get left open when traveling occasionally (you know who you are), right Chris? My 2 cents. Ed