Is it permitted to have multiple inserts on the same horizontal line in corner posts?

The practice of having multiple inserts on the same horizontal line in corner posts is not permitted due to the structural integrity concerns associated with such designs. Corners of dry vans play a critical role in maintaining the overall strength and stability of the container. Having multiple inserts on the same horizontal line can create points of weakness, which may compromise the structural performance of the corner posts under load or during handling.

The design of a dry van requires careful consideration of how loads are distributed and transferred through the structure. Introducing multiple inserts in a way that does not adhere to established design practices could result in failure during use, leading to safety hazards and potential damage to the cargo or the container itself. The standards developed by entities such as the IICL emphasize the need for a safe and reliable design, which includes restrictions on how inserts can be placed in critical structural components like corner posts. This restriction helps ensure that the container maintains its intended strength and functionality throughout its service life.