When you are moving cargo on a ship, stacking shipping containers is very easy. Containers are specially designed to fit securely on top of each other.  They can be stacked up to nine containers high. The corners of the containers are reinforced.  This ensures the containers stay in place during their journey. 

However, when you are stacking modified containers to create a multi-container structure, you must take more precautions.  Safety must be your priority when stacking the containers.  Safely stacking will ensure they retain their structural integrity. 

To safely construct a multi-container unit, Portables 360 uses the following guideline for stacking shipping containers: 

Stacking Shipping Containers Safely 

If the construction site where the containers will be stacked is prepared, our service techs will stack the containers immediately. The containers will be removed from the trucks in the order that they are required to construct the building.  They will be placed in  correct position. 

In most cases, we recommend that a crane is used for stacking the containers. Straps are placed at the four corners of each container.  Next, they are safely lifted and placed in position. Using a crane provides extra safety measures. Cranes can suspend the container until it is placed perfectly.

On some occasions, a heavy-duty forklift can be used for stacking containers. If a forklift is used, it must be rated for the weight limits of the containers.  Additionally, it must have the capability of lifting the container up high enough to be stacked.  Finally, it must be operated by an experienced technician. Using a forklift can be beneficial.  Ask us the best way to stack your shipping containers.

Securing the Shipping Containers Properly

When you are constructing a multi-level container building, it will be necessary to secure the base containers to the foundation.  This creates extra strength and security. Once we have secured the bottom containers, each container that is placed on top is secured in order. 

We use a locking system to connect our containers. This is the most secure connecting method to use on our container systems. These connections are placed at the corners of each container as well as any other key spot to help with structural integrity. 

Final Securing Measures 

Once the structures have been locked together, our crew will make sure that the containers are protected from the weather. To do this, we will caulk all seams. This protects the containers from water entering the containers and gives added strength to the structure.  A waterproof structure is an extremely important benefit to a shipping container structure.

We will also add flashing to the containers.  The added roof cap will deflect rainwater and snow. These finishing touches give your container the extra protection it needs to last. 

Once all of these tasks have been completed, the next steps in construction, such as electrical and plumbing installation, can begin.