What cargo movement is likely to cause scratches on container interior walls?

When evaluating the movement of cargo within a container, the type and manner in which the cargo is secured and transported plays a significant role in the condition of the container's interior. Improperly secured aggressive cargo is particularly troublesome because it can shift around during transport, especially if subjected to the motions of the vehicle or vessel. This movement can lead to the cargo coming into contact with the container walls, resulting in scratches.

Aggressive cargo typically refers to items with rough edges, hard surfaces, or those that can cause abrasions—such as certain tools, machinery, or construction materials. If such cargo is not adequately secured, it may slide, roll, or move, increasing the likelihood of damage to the container's interior walls as packages shift against them.

In contrast, properly secured cargo tends to remain stable and is less likely to move around or impact the walls, reducing the risk of scratches. Unloading cargo does not typically induce scratches; rather, it is the movement and handling of cargo that can lead to wall damage. Insulated cargo, while it can be bulky, does not intrinsically pose a risk for scratching unless it is also aggressive and poorly secured. Thus, improperly secured aggressive cargo is the most likely cause of scratches on the interior of