How to Stack Shipping Containers Safely

by | Jun 23, 2021 | Uncategorized

With a limited amount of space, it’s important for companies to take advantage of the space that they have. One of the many benefits of using shipping containers on your site is their flexibility. By being transportable and stackable, companies can reduce the amount of floor space and allow it be used for more important needs. However, it’s important that all companies follow the proper safety guidelines and instructions when stacking shipping containers. If you’re not sure where to begin, here are some helpful tips that will make stacking your containers an easy process.

1. Confirm Weight & Number of Containers

When stacking shipping containers, it’s important to know how much weight they can withstand and how many containers can be stacked on top of each other. In general, a 20′ container may weigh up to 5000 pounds and hold up to 60,000 pounds. A 40′ container may weigh up to 10,000 pounds and hold up to 120,000 pounds. However, it’s important to know how much weight is held within the container and how many containers will be stacked. Typically, shipping containers can be stacked up to nine containers high, but it’s also important to know what the maximum stack load is for the bottom container. This information can be found on the CSC (Convention for Safe Containers) plate or in the container’s documentation.

2. Lift and Stack Containers Properly

When stacking your shipping containers, your crew can use either a crane or straddle carrier to easily lift them. The benefits of this method are that it’s faster, safer, and more accurate than using a forklift. In order to stack using a crane or straddle carrier, the crew must attach them to the corner castings. The corner castings are the four corners on the top and bottom of the container.

DropBox Inc, ISO Shipping container, Shipping container, shipping container sizes, shipping container weight, how to stack shipping containers, stacking shipping containers, corner castings, crane, straddle carrier, twist locks DropBox Inc, ISO Shipping container, Shipping container, shipping container sizes, shipping container weight, how to stack shipping containers, stacking shipping containers, corner castings, crane, straddle carrier, twist locks

3. Secure Containers to Each Other

So, you have your containers stacked on top of each other, but your job isn’t done yet. To ensure that the containers stay safely in place, twist locks (pictured below) must be used to secure the four corners of the containers to one another. To use these locks, the twist locks are inserted into the elongated holes of the corner castings. To secure the containers, the handle must be turned 90 degrees. This process is repeated for each container that you wish to stack.

DropBox Inc, ISO Shipping container, Shipping container, shipping container sizes, shipping container weight, how to stack shipping containers, stacking shipping containers, corner castings, crane, straddle carrier, twist locks

By following these instructions, your company will ensure that your stacked containers are safely secured and ready to be used. If you have any additional questions or concerns about multi-container structures, call us at 740.532.7822, email us at sales@dropboxinc.com, or fill out a form.

PSG Hosts Annual PSM Worker Appreciation Meal

PSG Hosts Annual PSM Worker Appreciation Meal

Every year, Portable Solutions Group and its family of companies (DropBox Inc., Modular Security Systems Inc., and Portable Solutions Manufacturing) hosts a worker appreciation lunch for our manufacturing team. For this year, we had Hillbilly Hibachi, a Japanese...

Why Choose Modular Construction?

Why Choose Modular Construction?

During any construction project, business leaders must ensure that they don't experience things such as late project times or an exceeded budget. To help combat these issues, modular construction has become a viable building option. But why should companies choose...

How MSSI Restores Rental Units for New Customers

How MSSI Restores Rental Units for New Customers

When Modular Security Systems, Inc. receives one of its rental units back from a customer, it can sometimes have wear and tear from things such as weather, being moved around a lot, etc. So, it's important to us that every unit from our rental fleet looks and works...

Got Some Questions? Our FAQs Can Help

Got Some Questions? Our FAQs Can Help

Our team understands that you have many questions running through your head when you are purchasing a DropBox Inc. shipping container modification. We continuously work to make our process as easy as possible for current/potential customers. As a result, here are some...

Blast Resistant Modules Offer Site Portability and Turnkey Features

Blast Resistant Modules Offer Site Portability and Turnkey Features

At DropBox Inc., we provide blast resistant modules (BRM) that are ground-level and require no major onsite installation. As long as your site has a level surface of concrete, asphalt, or hard packed gravel, you can have a BRM from DropBox Inc. delivered directly to...