Storage containers and over sized concrete blocks are the economical solution for needing to elevate structures to create more storage capacity.
One consideration is when the product being stored does not lend itself to stacking, such as salt, sand or soil, there is the added dimension of outward push on the wall. Not only does the pile push outwardly, but an operator scooping the product will create even greater push.
Storage containers and over sized concrete blocks are the economical solution for such a situation. The weight and the stability which both the containers and blocks give, eliminates the need to anchor into the ground.
Containers are often simply put on the ground.
When going more then two layers with the blocks, there should be a concrete pad or special preparation of the soil to provide stability.
When choosing this foundation method, it is important to consider how and where the shelter will shed water and snow.
The top of the wall or container must be sealed to the possibility of moisture going inside.
The other thing that must be given proper consideration is that the shelter is able to deal with the extra wind load created by elevating the shelter this much.
In most of these installations, the wind load on a building is at least double of what it would be if mounted on the ground.