For bottom side rail outward deformation, what is the maximum condition to adhere to?

The correct response highlights the importance of maintaining the structural integrity and functionality of the dry van's corner fittings. Specifically, for bottom side rail outward deformation, it is essential that the deformation does not extend beyond the side surfaces of the corner fittings. This ensures that the integrity of the connection between the side rails and the corner fittings remains intact, preventing potential safety issues and preserving the ability to properly stack and secure containers.

This condition preserves the alignment and structural stability necessary for load management and the overall design of the dry van. If the deformation exceeds the corner fittings, it could lead to complications that might impede loading and unloading processes or affect the strength and safety of the van when in use.

In contrast, the other options describe scenarios that could compromise the functionality and safety principles of dry van construction. For instance, allowing deformation to surpass the corner fitting could lead to misalignments or structural weaknesses, while stating that the deformation can be lower than the corner fitting does not support the necessary standards required for effective load bearing. Additionally, aligning with the center of the van might not be a relevant condition in terms of how deformation should be managed within the design constraints established by the corner fittings.