Container grades and condition
one-trip container
A one-trip container is a container that has made a single cargo voyage from the factory before being sold or rented. It is close to new. It usually has clean lines, solid floors and doors that work smoothly. Sellers use the term in slightly different ways.
Why it matters
One-trip units suit jobs where looks and long life matter, such as customer-facing sites, container offices and conversions. They cost more than used grades. They are often built overseas and shipped in with cargo, so they have one voyage of wear. Some buyers also pick them when they worry about what a used box carried before. A common mistake is to assume one-trip means unused. It has been to sea once, and handling can still leave marks. Look at the actual unit, not the label. Ask when it arrived, check the floor and door gaskets, and write the grade you agreed on into the order.
Read: Shipping container grades explained: One-trip, IICL, cargo worthy, and WWT
Definition source: eagleleasing.com
Related terms
used container
A used container is a container that has served a working life, usually at sea, before being sold or rented for storage. Sellers grade used units, often as cargo worthy, wind and water tight or as-is. The grade affects price, appearance and how well the unit keeps out water.
cargo worthy (CW)
Cargo worthy is a trade term for a used container that is sound enough to carry cargo by sea. It points to structural condition, not looks. Sellers define it slightly differently. It does not by itself prove the container holds a current CSC plate or survey.
wind and water tight (WWT)
Wind and water tight is a trade term for a used container that should have no holes or defects that let wind or water in. It is not certified by an outside body. The seller decides whether a unit meets it, so definitions vary by company.
refurbished container
A refurbished container is a used container that has been repaired and cosmetically restored, usually with surface preparation and new paint. It is not structurally changed. Sellers often start with a unit that meets the wind and water tight category. The term is a trade term and has no single standard.
container inspection
A container inspection is a check of a container's outside, inside, doors, floor and roof for damage, leaks and wear. Buyers do it before purchase. Operators do it when units go out and come back. It can be a quick look or a formal review to a standard.
shipping container
A shipping container is a standardized steel box used to move freight by ship, rail and truck without unloading the goods. Most are rectangular, closed boxes with doors at one end. Many are reused for storage after their sea service ends.
For the industry
Grow your portable storage business with NPSA
Members get event rates, the Community Forum, the directory listing and leads from this website.
Need storage?
Get quotes from NPSA member companies
Tell us what you need and where. A member company that serves your area will contact you.