Commercial grade trailers have certain features that you may not see, but these are the features that make these trailers last long and work harder than all other trailers.  Tube framing, thicker interior and exterior walls and flooring, radial tires with torsion axles, extra gussets and supports throughout the design and several other features are what make these trailers heavy duty.  Please look at each trailer shown in this category for new and innovative way to design a trailer that may work for you.