What is the maximum corner post insert width relative to its cross section?

The maximum corner post insert width is limited to 50% of its cross section to ensure structural integrity and maintain the load-bearing capacity of the dry van. When corner posts are reinforced, such as with inserts, it is crucial that their modifications do not compromise their foundational strength. By restricting the insert width to half of the corner post's cross section, it allows for adequate distribution of forces and minimizes any potential weakening that could lead to failure during transport. This limit has been established based on industry standards and practices to promote safety and durability in the design of dry van trailers.