Advanced trailer technology is alive and well at Corn Pro Trailers. For two decades Corn Pro has provided the innovations that set the standard for steel trailer technology and durability. Every Corn Pro trailer uses only the highest quality raw materials available. All sides of the Corn Pro trailer are formed from 14-gauge steel, welded onto a 14-guage, 3” x 1” upright tube post. Tube posts are stronger, provide a better appearance, less wind resistance and excellent strength transfer to the roof.