12 Myths of Modifying Used Shipping Containers

Used shipping containers are usually repurposed strong, durable steel structures into residential, commercial, industrial, or storage use. It is a cost-effective, sustainable, and flexible way to help reduce waste. 

However, unfortunately, not many people are doing this yet. The reasons vary, from doubts about durability to unproven comfort levels.

To dispel any doubts, the following are some myths regarding the conversion and modification of used shipping containers that are widely circulated in the community!

Contents

Myths of Modifying Shipping Container

Tradecorp's container art bar
Tradecorp’s container art bar

1. Modified Container Homes Are Uncomfortable

Most people imagine a cramped, uncomfortable box-like space. However, not all container homes have these characteristics. 

Container homes have a very flexible design. If you need a large space, simply combine two or three containers side by side. 

Alternatively, you can stack two or three containers with the roofs and bases cut off to create a high ceiling. For added comfort, you can add air conditioning and various furniture to enhance the experience.

2. Used Containers Are Dangerous

Some type of containers are used to transport various hazardous chemicals. This is certainly very frightening for potential users of used containers due to concerns about environmental safety.

Many people still worry about the presence of hazardous chemical residues or other substances that are unsafe for humans.

However, you don’t need to worry anymore. The good news is that each used container has its own unique code that identifies the type of goods it once contained. Moreover, most used containers sold on the market have undergone a series of safety and usability tests, so you don’t need to worry about this.

3. Container Homes Are Difficult to Build

It’s undeniable that, from an architectural standpoint, some types of buildings made from used containers are quite difficult to construct.

However, in general, building a house from used containers is easier and faster than building a conventional house. In some cases, homeowners design and modify their container homes solely based on experience from videos, of course, at their own risk.

While it’s possible, this is still not recommended. Hiring a trusted container modification service is best to ensure the results meet your expectations.

4. Shipping containers are ready-made buildings.

Used containers are a bare steel shell, not a plug-and-play structure. Think of them as a strong blank slate, not a finished product. They require framing, insulation, ventilation, flooring, electrical, plumbing, weatherproofing, and finishing.

5. Container Modifications Are Not Environmentally Friendly

Some people still assume that container buildings are environmentally unfriendly because they are made of heavy corten steel. However, that is not true.

By building a house or cafe from used containers, you directly contribute to reducing steel waste, which is difficult to decompose naturally. Utilizing used or recycled materials is crucial in today’s digital age because it reduces the accumulation of worthless items.

6. Modifying a Container is Always Cheaper than Traditional Building

The notion that container building construction costs are much cheaper than conventional building construction is still a matter of debate. This depends on the type of building being constructed. So, this myth may or may not be true.

In reality, container modification costs may not be as cheap as imagined. Using modular containers alone will not significantly reduce construction costs, but it can save construction time and structural design.

7. Any Used Container is Good for building

Not all used containers are safe or suitable. Some may be structurally compromised, like bent frames and rust holes.

There are also containers that have been treated with toxic chemicals like floor pesticides and paint, and have hidden water damage or corrosion.

Therefore, always inspect for cargo-worthy or wind & watertight (WWT) condition before using.

8. Container Buildings Cannot Be Moved

Many people assume that containers that have been modified into buildings cannot be moved or transported to another location. This idea is certainly valid, considering that container building structures are typically designed to remain static.

In fact, you can still move a modified container building anywhere as long as it’s still fit for use. Although the structure appears permanent, you can still move containers by dismantling its various removable components.

9. Temporary Modifications

Containers are often chosen as building materials because they are more portable and easier to disassemble when no longer in use. This has given rise to the stigma that modified container buildings are only temporary and not permanent.

In fact, modified container buildings can also be made into permanent structures with almost the same quality as conventional buildings.

10. Shipping Containers are Naturally Well Insulated.

The truth is, steel containers have zero insulation and act like an oven or freezer depending on the weather. Therefore, you need to add foam, batt, or panel insulation to prevent condensation and thermal bridging. Without insulation, containers are not livable or comfortable. Also, consider proper ventilation and HVAC for more comfort.

11. You Don’t Need Permits to Use a Container

This statement is not entirely true. Most cities and counties require building permits, zoning approval, site plans, and inspections.

Even for storage use, containers often require anchoring or foundation compliance.

12. You Can Stack Any Containers Easily

Only cargo-worthy containers should be stacked. Improper container stacking can compromise structure, lead to shifting or collapse, and require level foundations.

Tips on Modifying a Shipping Container

A shipping container from Tradecorp USA
A shipping container from Tradecorp USA

Choose the Right Container

While buying used shipping containers, avoid damaged or heavily corroded units unless you plan to invest in repairs. If you need a used container of good quality, you can buy cargo-worthy or one-trip containers to ensure structural integrity.

Check for Hazards

Used containers may have floors treated with pesticides or chemicals. Consider replacing floors or sealing them with epoxy if unsure.

Plan Structural Cuts Carefully

Always reinforce cut areas with steel framing or headers. Cutting large holes for windows or doors weakens the structure. Use a grinder or plasma cutter and follow proper ventilation and fire safety practices.

Insulate for Comfort

Steel containers get extremely hot in summer and cold in winter. Use spray foam for moisture, rigid foam board for flat walls, and mineral wool for framed walls. Also, do not forget roof insulation and vapor barriers.

Plan Utilities Before You Build

Conduits can be run through floors, walls, or added stud framing. Decide early where to run electrical, water, and sewer lines. Then, use marine-grade or outdoor-rated electrical components for durability.

Frame the Interior Walls

Framing helps with mounting cabinets, outlets, or wall panels. Create space between the insulation and interior wall panels to prevent condensation. Use metal studs to avoid mold and warping.

Use Container-Grade Doors & Windows

Using container-grade doors and windows can make your modified container more safety and comfortable. Install double-pane windows and steel or marine-rated doors. Then, frame all openings tightly and seal gaps with butyl tape or flashing. Consider security bars or shutters if in an unsecured location.

Add Ventilation

Ventilation is crucial for bathrooms, kitchens, and humid climates. Add vents or exhaust fans to avoid moisture buildup. Then, use whirlybird roof vents, louvered vents, or mechanical systems.

Check Permits and Local Codes

Contact your local planning department before building. Some areas treat container buildings like tiny homes or ADUs (Accessory Dwelling Units). Ensure your modifications follow zoning regulations, foundation/anchoring codes, and energy/fire codes.

Conclusion

Using used shipping containers for construction is still not very popular in the U.S. Therefore, it’s not surprising that many myths still circulate among the public because they haven’t experienced the convenience and comfort containers have to offer.

Buy or rent new and used shipping containers from Tradecorp, a reliable container sales, purchase, rental, and modification service company.

Tradecorp provides modification and custom shipping container services by adding windows, doors, walls, and roof insulation. 

Our experienced staff is ready to help you arrange the shipping of your container to your requested location. Fill out our quote form to buy or rent from us!

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