These accessories represent modular additions to an open trailer, typically constructed from materials such as steel, aluminum, or wood. They increase the vertical dimension of the cargo area, providing enhanced security and preventing items from shifting or falling during transport. For instance, installing these components onto a standard flatbed trailer transforms it into a more enclosed space suitable for hauling loose materials like mulch, gravel, or furniture.
The addition of these structures provides several key advantages. It expands the carrying capacity of the trailer, allowing for the safe transport of larger volumes of materials. Furthermore, it enhances the security of the load by preventing items from being dislodged by wind or road conditions. Historically, these attachments have evolved from simple wooden planks to more sophisticated, engineered systems, reflecting advancements in materials science and manufacturing processes. This evolution underscores a commitment to improved cargo management and safety standards.