What are Container Grades?

Shipping container grades

There are four broad grade categories: New (one trip), IIICL, Cargo-worthy (CW), Wind and Watertight (WWT),

New (one-trip) containers have only been used once, to transport their original shipment from the country of origin to destination. They tend to be in immaculate condition without dents, scratches, or rust and are ideal for high-end modifications, shipping, and storage. 

IICL CONTAINERS(or lease grade) This grade of shipping container is a used container, in most cases 10 years old or newer and hasn’t had much use or wear and tear.  Very minimal rust or no rust is also a trait of an IICL Shipping Container. These are the very nicest grade of used container and will generally appear nearly new.


Cargo-Worthy containers are a little older but are still fully functional and certified for use for travel, meeting CSC (International Convention for Safe Containers) standards. They might have a few scratches or rust, but still good for storage, shipping, and building projects. Cargo worthy(CW) containers are generally 8-12 years old.

Wind and Watertight containers are still structurally sound but aren’t suitable for international shipping. They might have faded paint, rust, or dents, but are still watertight and suitable for storage or lower-budget modification projects. Wind and Water Tight(WWT) containers are generally 10-15 years old.