To prevent a metal coil from rolling, which method is prohibited?

Attaching tiedowns diagonally to form an X-pattern is not an acceptable method to prevent a metal coil from rolling. This approach can inadvertently allow for movement in multiple directions, which may fail to secure the heavy coil properly during transport. Properly securing a metal coil generally requires tiedowns that are applied in a manner that minimizes any potential for rotation or rolling.

Methods like attaching tiedowns parallel to the vehicle, using dunnage under the coil, or securing with direct tiedowns are effective because they create leverage and pressure that keep the coil firmly in place. Parallel arrangements keep the load secure to the floor of the vehicle, while dunnage can provide a stable base and prevent any shifting. Direct tiedowns ensure that the load is tightly controlled and reduce the risk of movement during transit. Using these methods is critical to ensure safety in transportation, especially with heavy and potentially hazardous loads like metal coils.