Why is it essential to store explosive items on dunnage?

Storing explosive items on dunnage is essential primarily to keep them off the floor. This practice helps to prevent moisture accumulation, which can be detrimental to the stability and safety of explosives. Storing explosives directly on the ground can expose them to elements that may compromise their integrity. Dunnage, often made of wood or other sturdy materials, elevates the explosives and provides a barrier against potential hazards such as dirt, moisture, and corrosion.

While other options touch on aspects of storage logistics, they do not address the primary safety concern related to the handling of explosive materials. For example, easy access is beneficial for operations but is secondary to ensuring the items are not exposed to conditions that could adversely affect their safety and effectiveness. Similarly, increasing the weight or enhancing explosive properties does not pertain to the critical need for protective measures such as keeping items elevated off potentially harmful surfaces.