Most used container cargo has rust, dents, scratches, and other issues. It’s important to understand that not all used containers are suitable for loading and unloading, especially for facilitating cargo shipments overseas.
Used containers that fail to qualify are often used as modified containers, such as office containers, mess halls, storage containers, toilets, and even workshops.
Meanwhile, used containers that meet the requirements for cargo-worthy containers (CW) will be certified to ensure their legality. A container cargo worthy (CW) refers to the condition of a used container that is still suitable for use in shipping cargo across borders or for importing and exporting.
To determine whether a used container is cargo-worthy, get to know the characteristics of shipping container cargo worthy in this article!
Contents
Why is cargo-worthy container status important when using used containers?

There are several reasons why a cargo-worthy container status is important for a used container. The number one is safety, as it should be safer than other used containers because they have undergone thorough inspections and obtained certification that is required for the shipping process.
Next is durability. A Cargo Worthy containers are proven to withstand extreme weather conditions and can be used for years. Therefore, they have higher resale value compared to uncertified used containers. Using cargo-worthy containers can save costs due to minimal repairs, let alone replacement.
As explained above, used containers, before being determined to be cargo worthy, will undergo an inspection by a surveyor. The inspection conducted by the surveyor refers to the requirements of the CSC (International Convention for Safe Containers), which aims to:
- To safeguard the safety of human life in the transport and handling of containers.
- To facilitate international container transport by providing uniform international safety regulations.
Cargo-Worthy Container Characteristics

CSC plates in cargo-worthy or new shipping containers[/caption]
Price
The price of a cargo-worthy container is more affordable than the new one, making it suitable for businesses with limited budgets. Later, if you want to resell, you can still get a good price if you maintain the container properly. This is popular in the secondary market.
Usage History
Most of the cargo-worthy containers have been used for about 8-15 years old. At this age, they already have multiple overseas trips, heavy use of freight transport.
Physical Condition & Durability
The physical condition of a cargo-worthy container will remain sturdy and weatherproof after 8+ years of usage because it is made of corten steel. However, there may be dents, rust, or signs of use that need repair. No major damage to the frame, corner posts, rails, or cross-members.
The container can still withstand lifting, stacking, and loading under full capacity. And its door can operate properly and close tightly with fully functioning locking bars and handles.
Certification Option (CSC Plate)
After undergoing inspection, if the container has passed the test, a CSC plate is affixed to the shipping container. For overseas use, cargo-worthy containers may be issued a valid CSC (Container Safety Convention) plate. Certification must be current and compliant with ISO 1496/1 standards. For this, you should have your cargo-worthy container inspected by IICL (Institute of International Container Lessors) or a qualified surveyor.
This CSC plate contains information such as the Container Model, Manufacturer’s Name, Country of Approval and Approval Reference, Date Manufactured, Manufacturer’s Serial No., Container number, Maximum gross weight, Allowed Stacking Weight, and Racking Test.
Ease of Modification
The cargo-worthy container is more flexible to be converted into a house, office, shop, or warehouse.
Installation Process
The installation process of a cargo-worthy container is generally faster since it is available in a ready-to-use condition.
Contamination Risk
There may be traces of chemical cargo or odors of the cargo-worthy containers that are difficult to remove. Also, the cargo-worthy container may have a previous pesticide treatment, as this is common in used containers.
Size Availability
When buying the cargo-worthy containers, keep in mind that most of the time, they only have a limited size chart. The common size of this type of container is only the standard container sizes, which are 20’ and 40’.
Other Shipping Container Grades
One-Trip Shipping Container
One-Trip shipping Containers are containers that have been used only once to transport cargo. This is also called a new container, as they have no differences. A one-trip container is a new container that has only been used once, usually from the manufacturing factory, often in China, to its destination country.
After that single journey, it’s sold as “new” or “like-new” in the local market.
Wind and Water Tight
A WWT shipping container is a used shipping container that is no longer certified for international shipping but is still structurally sound and completely sealed against the elements.
It is structurally sound, free from holes or leaks, and capable of keeping out wind, rain, dust, and pests. These containers have also passed a visual inspection but may not be certified for international shipping, making them ideal for food storage.
However, not every type of goods can be stored in this container, including perishable food. This is because they do not have insulation or a refrigerator system. You need to avoid using them for perishables, frozen items, and items that are sensitive to heat or humidity unless modified.
As-Is
An As-Is shipping container refers to a used container sold in its current condition, with no guarantees of structural integrity or weatherproofing. The unit may have structural issues such as holes, broken doors, or significant rust.
These containers are often the lowest-cost option, typically retired from active service due to age, damage, or failure to meet cargo-worthy or watertight standards.
This type of container is usually used for non-structural projects, scrap metal, parts recovery, or creative repurposing. On the other hand, it is not suitable for shipping, watertight storage, and load-bearing construction without repair.
Refurbished / Repainted
A refurbished or repainted shipping container is a used container that has undergone inspection, minor repairs, and cosmetic restoration, often including surface rust removal, patching, and a new paint coat.
These units strike a balance between affordability and good appearance/structural integrity, making them ideal for storage, on-site offices, or conversion projects.
This container is fully wind and watertight (WWT), but it may or may not carry a valid CSC plate. You can use a refurbished or repainted unit for secure storage, workshops, modified structures, or general site use. However, it can not be used for overseas shipping unless it has a valid CSC plate.
Cargo Worthy Containers (CW) Available at Tradecorp

20ft Cargo Worthy Container
The 20ft cargo worthy shipping container is our most popular and common type of shipping container for sale. This container is suitable for both storage and freight, especially for dry cargo that doesn’t require temperature control. It is manufactured according to ISO specifications, which makes it suitable for the intermodal transport of freight. It is also equipped with a variety of features that guarantee the safe transport of your cargo.
The 20ft dry containers are popularly used for transporting and storing a variety of dry cargo, including electronics, vehicles, apparel, industrial equipment, and other common consumer goods. With their sturdy construction and security features, these containers are ideal for businesses requiring the intermodal transportation of goods in any weather conditions. Whether you require shipping containers for cargo transportation or storage, Tradecorp can provide a secure and standardized ISO container that meets all your needs.
40ft Cargo Worthy Container
Measuring L 40’ x W 8’ x H 8’6”, this container is designed to securely hold a substantial amount of goods, equipment, or materials. The 40′ Cargo Worthy Container is popular among businesses since it can carry more cargo to improve efficiency and fit the requirements for intermodal freight transport. Some of the dry goods that this container can carry include industrial equipment, raw materials, apparel, vehicles, and more.
One of the key features of this shipping container is the corner castings that enable safe stacking with other containers through twist lock mechanisms and secure attachment to trailers, trains, or ships. This guarantees that the containers can be stacked effortlessly, transported securely, and stay properly aligned and locked during transport. Additionally, the container also includes lashing rings to ensure that the cargo is secured in place and does not shift during transit.
Conclusion
Cargo-worthy containers are the right choice if you need a reliable container for domestic and international shipping goods at an affordable price.
Buy cargo-worthy shipping containers from Tradecorp. Tradecorp is a reliable storage 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!