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Container Grades Explained
Four words set every container's price. Learn what each one commits the seller to — and make it appear on your quote.
Four Words That Set Every Container's Price
Grades are the used market's entire vocabulary, and mastering them takes five minutes: one-trip, cargo-worthy, wind-and-watertight, as-is. Every honest quote in the metro names one; every regretted purchase we've ever heard about skipped that step. Here's each grade, what it commits the seller to, and the price behavior to expect.
One-Trip — The New-in-Practice Grade
Manufactured abroad, loaded for exactly one revenue crossing, then retailed. Factory paint, unmarked floors, gaskets with decades left. You pay a $1,500–$2,500 premium over used for maximum runway and clean-canvas looks — rational for visible placement, build-outs, and buy-it-once planning. Not rational for hiding behind a barn, which is where the next grade lives.
Cargo-Worthy — The Certified Middle
CW is a standard, not an adjective: surveyed structure, doors, floor, and seals fit to carry cargo at sea. In practice it's a 8–15-year veteran with cosmetic battle scars and certified bones — the grade we recommend by default because it prices used while carrying paper. Most of the used inventory we move is CW.
Wind & Watertight — The Budget Truth-Teller
WWT promises exactly two things: weather out, doors working. No survey, more mileage, honest price. On drained footing doing yard duty, a WWT box delivers 90% of a CW's service at a further discount — provided it was graded truthfully, which is why ours carry the same lifetime watertight warranty and the same at-the-truck rejection rights as every grade above it.
As-Is — Know What It's For
Parts donors, paint-shop projects, non-weatherproof coverage. Legitimate uses all — but "as-is" appearing anywhere near the word "storage" is your cue to leave. We don't retail as-is boxes as storage, period; the rail pipeline gives us the luxury of rejecting them upstream.
Using Grades Like a Pro
Two habits protect every dollar: match the grade to the placement (street-visible → one-trip; standard duty → CW; back-lot economy → WWT), and get the grade in writing, quote and invoice both. Then verify at the truck against the four-point check in the buyer's guide — roof, floor, gaskets, castings. Sixty seconds of looking beats sixty days of regretting.
Grade Questions
Who actually certifies 'cargo-worthy'?
Marine surveyors, against CSC (Container Safety Convention) standards — it's the certification that lets a box legally ship internationally. That paper trail is what separates CW from a seller's opinion.
Is WWT a gamble?
Not when the seller defines it and stands behind it — ours carry the same lifetime watertight warranty as everything else. It becomes a gamble when 'WWT' is a vibe rather than a commitment; make any seller put the grade on the quote.
What does 'one-trip' actually mean — is it new?
Functionally yes: built overseas, loaded once for the crossing that delivered it, then sold. Expect possible pinhole-level handling marks and nothing else. It's the closest thing to 'new' that exists in a market where empty boxes don't cross oceans for free.
Grades and Warranties: How They Interact
A subtlety worth stating plainly: our lifetime wind-and-watertight warranty applies across grades — the WWT economy box and the one-trip showpiece carry identical coverage against holes. What differs by grade is everything the warranty doesn't govern: cosmetics, certification paperwork, expected remaining decades, and resale positioning. This is deliberate. Grade should price appearance and longevity, not gamble on dryness — dryness is the product, and it's guaranteed at every tier. When a seller's cheaper tiers come with warranty carve-outs, you're not looking at grades; you're looking at disclaimers wearing grade names. That distinction is worth a paragraph anywhere containers are sold, so here it is.