Your Guide to Shipping Container Storm Shelters (2024)

NOVEMBER 1, 2021 BY CAM BOB

The United States experiences around 1,000 tornadoes every year. These events not only contribute to devastating property damages but the loss of life, as well. Shipping container storm shelters are an increasingly popular solution for protection against natural disasters. Check out the information below to learn more about how shipping containers can help keep you safe.

Your Guide to Shipping Container Storm Shelters (1)

How to Build a Shipping Container Storm Shelters

People are turning to shipping containers as emergency shelters for protection in the event of a natural disaster. Though the process is simpler and less expensive than other kinds of survival bunkers, there are certain preparations that must be made. Review the following steps to learn how to incorporate shipping containers into your emergency preparedness plan.

You can also check out this article to learn more about shipping containers and their diverse uses.

Your Guide to Shipping Container Storm Shelters (2)

Think About Your Dimensions

The first thing you want to think about when creating a storm shelter is dimensions. Shipping containers come in a variety of sizes, so take into account the amount of space allotted for your storm shelter. You should also factor in how many people and/or supplies it needs to hold. Clearly, larger groups will want to invest in a larger shipping container or even multiple shipping containers.

If you want to learn more about shipping container dimensions, click here.

Reinforce the Structure

Structural integrity is paramount when converting a shipping container into a storm shelter. Shipping containers are designed to be stacked, so they bear more weight on the corner posts than on the sides. Therefore, you'll need to reinforce the walls to make sure your shelter will withstand the force of storms and other natural disasters.

Set Your Foundation

Strong winds, moving water, and shifting earth can all potentially be forceful enough to move or even damage even the strongest steel shipping containers. To help prevent this, you should start with a concrete foundation to station your storm shelter in place.

Set up Your Interior

Once you've secured the exterior of your shipping container storm shelter, it's time to focus on the interior. You'll want at least some seating, so that everyone can rest comfortably. If you anticipate being holed up for longer periods of time, you can look into other kinds of accommodations.

Shipping container shelters can be outfitted with LED lights, so everyone will be able to see where they're going even during blackout conditions. LED lights last a long time and don't give off any heat, reducing the possibility of anyone accidentally burning themselves by getting too close.

The next step is to focus on stocking your storage container with essentials, including food, water, a first aid kit, and blankets. Make sure to have a plan in place in case anyone relies on daily medications.

Your Guide to Shipping Container Storm Shelters (3)

Benefits of Container Storm Shelters

Converting a shipping container into a storm shelter offers many positives. Their heavy steel construction provides safety and a secure hideaway to protect against unwanted entry.

Incredibly durable, shipping containers are designed to withstand harsh elements and can house thousands of pounds of product. They are also strong enough to support that same amount stacked on top of them.

Cargo containers can also provide further protection to anyone inside from inhaling dust and other dangerous forms of debris. Widely accessible, you can get shipping containers delivered to your door within days of placing your order.

Shipping containers are also available in different sizes, which will be important to individuals looking to prepare a survival shelter for a large group or a larger amount of supplies. You can also stack or attach multiple shipping containers to create a larger structure with multiple rooms.

Drawbacks of Container Storm Shelters

The decision to create a shipping container storm shelter largely depends on what kind of protection you're seeking. For instance, if you're looking for an underground shelter, you should probably consider other alternatives.

Shipping containers are not meant to be buried. If placed underground, the pressure the earth exerts on the sides could damage the structure. A shipping container bunker would require several structural modifications before it could be buried.

Another critical consideration is that most containers come with a single set of doors. It is generally recommended that shelters have two entry points, in case one entry becomes blocked. Additionally, these doors lock from the outside, necessitating the installation of a secondary door or roof hatch to make the shipping container a safe, functional shelter.

High winds, moving water, shifting ground, and other weather events potentially have the strength to move even the heaviest, sturdiest of containers if they’re not stationed in place properly. Though important, a foundation can be a costly process.

Work with Mobile Modular Portable Storage

Mobile Modular Portable Storage is committed to providing each of our customers with a portable space solution that exceeds expectations. We deliver quality portable storage solutions to meet your specific needs with a level of individual service that inspires confidence. We pride ourselves on being the best in the market and in creating great customer experiences.

If you're interested in learning more about storm shelters or other shipping container uses, call us at 866.459.7600. Our experts are available to chat about your specific space needs. You can also get a quote by filling out this form. Leave your name, email, and phone number, and someone will reach out shortly!

FAQs

How much wind can a shipping container withstand?

According to the standards of the rigidity test, shipping container tornado shelters can withstand wind speeds of 180 mph without wavering.

Is it safe to bury a shipping container?

It is only safe to bury a shipping container if you make the appropriate modifications to its exterior. The roof will need to be reinforced to support the extra weight of the earth above. You'll also need to make sure it's insulated and airtight so that no airborne contaminants can get inside. This will also prevent mold from spreading and protect those inside from a host of respiratory issues.

How do you reinforce an underground shipping container?

Steel shipping containers are not designed to be buried. To be placed underground, they must go through several modifications. The walls and roof will have to be reinforced to prevent the pressure of the surrounding earth from damaging the container. You'll also need to lay a foundation and install a secondary door or roof hatch to transform the shipping container into a usable shelter

How safe is a shipping container during a tornado?

A shipping container dug into the ground as a tornado shelter will be able to withstand the force of a tornado, as will most underground structures. You'll need to weld x-braces on in order to support the weight of the dirt pushing into the walls and ceiling.

Your Guide to Shipping Container Storm Shelters (2024)

FAQs

Does a shipping container make a good storm shelter? ›

Shipping containers offer a durable, cost-effective solution for emergency shelter and storm protection. Their steel construction withstands high winds and impact, providing a safe refuge during dangerous weather events like hurricanes, tornadoes, and floods.

How do you turn a shipping container into a storm shelter? ›

When setting a shipping container up as a storm shelter, you need to make sure the container is secured to the ground. (Steel shipping containers have various places on them that can be utilized as tie-downs.) One option is to place sturdy anchors in concrete and use a steel cable to cinch the shipping container down.

Can a tornado pick up a storage container? ›

In essence, an anchored shipping container can withstand up to 180mph without budging. Moving a shipping container would take a Category 5 hurricane or F3+ tornado.

Is a conex box safe in a tornado? ›

It's not advisable to remain in a free-standing container during a tornado. In the event of a strong tornado, it is not advised to take shelter in or near a free-standing container. Without being locked down, or filled with heavy goods, a shipping container may tip over if exposed to powerful winds.

Can shipping container homes withstand a hurricane? ›

In conclusion, container homes can withstand hurricanes if built with the right foundation, windows, reinforcement, and anchoring. Therefore, by taking these precautions, you can enjoy the many benefits of container living while staying safe and protected during severe weather.

What is the cheapest storm shelter option? ›

The most affordable and weather-resistant tornado shelter material is concrete, but it's brittle and can crumble in the face of extreme weather. Though costlier, steel is a lightweight and durable option best for protecting you from flying debris.

What is the best foundation for a container home? ›

Pier foundations are the most popular choice for shipping container homes for numerous reasons. They are relatively inexpensive, and quick to construct, a pier foundation is comprised of concrete blocks.

What is the best door for a storm shelter? ›

Steel is the only readily available door material that passes the FEMA 361 and ICC 500 tornado test (250 mph wind speeds). No wood door, with or without metal sheathing, has successfully passed FEMA P-361.

Can a bullet go through a shipping container? ›

So, to answer the question “are shipping containers bulletproof?” the answer is no, not inherently. However, it is possible to make them more resistant to bullets using hardening techniques. It's important to consider the specific security needs of your application and choose the appropriate level of protection.

How to anchor a shipping container? ›

Ground plates with twist-locks are a fast and easy way to secure a shipping container to a foundation. Simply bolt the ground plates into the concrete and carefully lower the container so that the corner castings line up with the twist locks. Pull the levers on the twist locks and the container is secured.

How much wind can a shipping container handle? ›

Shipping containers are heavy steel boxes, but will they stay put in a tornado or hurricane? The ISO standards require shipping containers to withstand winds of up to 180 miles per hour without buckling or taking off into the air.

Can you bury a shipping container and use it as a storm shelter? ›

It is only safe to bury a shipping container if you make the appropriate modifications to its exterior. The roof will need to be reinforced to support the extra weight of the earth above.

Are you safe from lightning in a shipping container? ›

Because shipping containers are made of steel, they will become conductors if hit by lightning. However, if a container is grounded, the shell will act as a Faraday shield and the electricity will be conducted around the outside without affecting its contents.

How safe is it to live in a shipping container? ›

Shipping containers are just as safe and secure as traditional homes. Just like a “stick-built” or wood constructed home, the safety of a container home depends on property construction and maintenance, but they are otherwise no less safe than a traditional home.

Do shipping containers make good bunkers? ›

They are designed for shipping materials, not for burying below ground as a bunker, nor are they water-tight, leaving much to be desired for any long-term safe room considerations.

How long would a shipping container last buried underground? ›

People bury shipping containers for different reasons. While some may do so to secure more storage to stash valuables, others may be looking for a safe space from natural disasters. A shipping container will typically last about fifteen years for either application.

How do you weather proof a shipping container? ›

Waterproofing a shipping container involves several steps. First, examine the roof, which often bears the brunt of harsh weather. Look for rust and damage, and consider applying a waterproof membrane or a weather-resistant coating for added protection. Container doors require special attention too.

How sturdy are shipping container homes? ›

Durability and Strength

As mentioned above, shipping containers are made of tough, corrugated Corten steel, which can withstand extreme weather conditions and constant movement. Thanks to its strong steel frame, walls, ceiling and floor, it won't bend or shift under the weight of its contents.

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