Whether in aluminum or steel, be sure to specify open surface material which provides the best friction and keeps walk surfaces free of debris (snow, rain, ice, mud, etc.). Also ensure that the published load ratings are given a published safety factor and not merely ultimate break strength.
As trailer real estate gets more expensive, trailer access and other modular solutions will determine the safety and fluidity at which foodservice companies deliver their goods. Who knows, maybe they can make more by doing less.
Williams serves as president of Bustin Industrial Products, a trailer access equipment manufacturer since 1928.