Good nit-picking, ehBeth
To continue in the nit-picky vein - exterior wall thickness, interior sheathing, tiedown rails, scuff plates, front corner radius, and door thickness all combine to reduce the available interior space somewhat from the nominal 53' exterior length, though, admittedly, not by 3' - more like 6" to 10", depending on configuration. If you had an exactly-measured 53' long product to ship, it wouldn't fit in a typical 53' trailer.
Some websites you might find interesting:
Great Dane Trailers
Western Trailers[/i][/u]
For the latest in news and information on the North American road trailer industry, you can't do better than
Trailer Body Builders. and for the overall picture, there's
Over The Road Magazine.
