Storage containers are graded by condition, from new and one-trip units in near-new shape, to cargo-worthy and wind-and-water-tight used units, down to as-is containers sold in their current state, and that grade affects price, appearance, and how watertight the unit is.
Why condition matters
Shipping containers are graded by their condition, and that grade affects price, appearance, and how watertight the unit is. Whether you are renting or buying, knowing the common terms helps you match the container to the job, and avoid paying for more, or less, than you need.
New and one-trip containers
A "new" or one-trip container has made a single cargo voyage from the factory, so it is in near-new shape: clean lines, solid floors, smooth-operating doors, and minimal wear. These are the best-looking option and a popular choice when appearance matters, storefronts, customer-facing sites, or conversions.
Cargo-worthy and wind-and-water-tight
Used containers are commonly described two ways:
- Cargo-worthy (CW): structurally sound and certified suitable for shipping, meaning the unit can carry a valid safety approval under the International Convention for Safe Containers (CSC, 1972), shown on the data plate on the container door. A dependable, weather-tight unit that shows normal age.
- Wind and water tight (WWT): keeps wind and water out for storage use, though it may not carry shipping certification. A practical, value-friendly choice for on-site storage.
As-is containers
"As-is" units are sold in their current state and may have dents, surface rust, or older doors. They can be a budget option when looks are not a priority and you mainly need a sturdy, lockable box.
Which condition is right for you?
- Choose one-trip when appearance and longevity matter most
- Choose cargo-worthy or wind-and-water-tight for solid, weather-tight storage at a better value
- Consider as-is when budget is the priority and cosmetics are not
Deciding between renting and owning as well? Our guide to renting vs buying can help.
See what is available
Availability changes, so the best move is to tell us what you need. Browse containers for sale, look at rentals, or contact our team and we will let you know what we have on hand.

