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Buyer Reference

Container Condition Grades: A Mississippi Buyer's Guide

One-trip, cargo worthy, wind and water tight, economy: the labels look interchangeable, but they describe different units.

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Why Condition Grade Matters

The condition grade determines how long a container lasts. It also determines whether you can convert the unit, whether valuable equipment can be stored inside, and whether the visible cosmetics matter for your application.

Economy

Container One's most affordable grade remains functional for storage and shows visible wear. Expect:

  • Surface rust on most external panels.
  • Paint chipping, faded original branding, evidence of multiple repaints.
  • Dents and dings on side walls and roof. None should be deep enough to compromise structural integrity.
  • Floor wear: original plywood with industrial residue, possible burn marks, possible patches.
  • Door hardware functional but stiff.

Best for: Rough storage on a working farm or jobsite, where appearance is not a factor. Not recommended for storage of valuable, rust-sensitive, or moisture-sensitive contents without ventilation upgrades.

What it looks like: Visible rust streaks, chipped paint, repaired patches.

Wind and Water Tight (WWT)

WWT means the container is structurally sound and guaranteed not to leak. Specifically:

  • Door seals checked and confirmed weatherproof.
  • Roof inspected for holes, dents, and rust through-spots.
  • Floor inspected and confirmed structurally sound. May show wear but no rot, no holes, no soft spots.
  • Walls inspected and confirmed solid. Surface rust and cosmetic dings are acceptable.
  • Door hardware functional.

WWT is not the same as cargo worthy. WWT means the container keeps wind and rain out. Cargo worthy means the container can pass a marine survey to be re-certified for shipping by sea or rail.

Best for: General storage, contractor jobsite tools, farm equipment, household goods during a renovation, on-site materials during construction.

What it looks like: External panels show some surface rust and cosmetic wear, but doors close cleanly, seals look intact, and the interior is dry. The unit looks used but functional.

Cargo Worthy (CW)

The Cargo Worthy grade is based on the container's structural condition. That means:

  • All structural members (corner castings, side and end frames, undercarriage) inspected and confirmed sound.
  • Walls, roof, and floor confirmed weatherproof and load-rated.
  • Door hardware tested.

For storage, CW works much like WWT; the difference is that a CW unit can pass a marine survey. Pricing sits between WWT and one-trip.

Best for: Buyers who plan to ship the container by sea or rail after a marine survey, and buyers who want better cosmetics than WWT without paying for one-trip.

What it looks like: Cleaner overall appearance than WWT, with visible age but a more uniform exterior.

One-Trip (Sometimes Sold as Like-New)

A one-trip container has made a single ocean voyage, typically loaded from a manufacturing facility in Asia to a North American port. After unloading, the unit goes into the resale market essentially brand new. Specifically:

  • Original factory paint, with minor scuffs from the single shipping journey.
  • Floor in excellent condition, no industrial wear.
  • Doors and seals tight.
  • Interior clean and dry, no residue.
  • Minor cosmetic marks consistent with one ocean trip and one truck transfer.

Best for: Conversion projects (offices, workshops, tap rooms, tiny homes), food-adjacent or sensitive storage, customer-facing placement, and anyone who wants the cleanest grade.

What it looks like: Factory paint, sharp graphics, clean interior. Looks like a new container with light handling marks.

Warranty by Grade

Container One's warranty depends on the grade:

GradeWarranty
One-Trip10 year structural and 10 year no-leak
Cargo Worthy5 year structural and 5 year no-leak
Wind and Water Tight5 year structural and 5 year no-leak
Economy1 year against roof leaks

Working refrigerated containers carry a 1-year leak-free guarantee. Ask a Container One sales representative about coverage for the refrigeration unit itself before buying.

How to Choose for Your Use Case

The match between use case and grade:

Use CaseRecommended Grade
Construction jobsite tools and materialsWWT
Farm or ranch equipment storageEconomy or WWT
Household goods during renovationWWT
Office, workshop, tap-room conversionOne-trip
Tiny home or container home buildOne-trip
Long-term acreage storageWWT
Shipping by sea or rail after a marine surveyCargo worthy
Customer-facing placement (retail, hospitality)One-trip

Inspecting on Delivery

Whatever grade you select, the visual checklist is the same:

  1. Floor. Walk it. Listen for soft spots. Look for water staining or rot. A damaged floor is costly to repair after delivery.
  2. Door seals. Look for daylight around the closed doors from inside while a second person stays outside with the doors unlatched. Daylight means a gap in the seal.
  3. Roof. If you can climb up safely, check for dents that pool water, rust through-spots, and obvious patches.
  4. Corner castings. The eight corner blocks should be intact and free of major damage. They carry the entire load when the unit is lifted or stacked.
  5. Side walls. Look for bulges, deep dents, and heavy rust patches. Surface rust is normal; structural rust is not.

Delivery and Grade in Mississippi

Container One supplies the containers and arranges delivery through local carriers. As of October 14, 2026, its delivered prices for Jackson, Gulfport and Hattiesburg were figured from depots in New Orleans, Mobile and Memphis. The depot depended on the size, the grade and the city.

Container One publishes no fixed delivery window. Its Delivery/Dispatch team reaches out to agree on a date and time, and the timing turns on where you are, when the payment arrives, the weather and other factors. Delivery areas across Mississippi:

  • Jackson, Meridian, Vicksburg, Natchez and Central Mississippi
  • Gulfport, Biloxi, Hattiesburg, the Mississippi Gulf Coast and the Pine Belt
  • Tupelo, Oxford, Starkville, Greenville and the Delta

Frequently Asked Questions About Container Grades

Any grade can sweat inside, because condensation comes from humid air meeting cool steel. Vents, pallets and a level set-down do more than the grade to keep stored goods dry.
It can. Salt air speeds up rust wherever paint is chipped or scratched. A One-Trip unit arrives with its original factory paint, and touching up scratches on any grade slows rust near the water.
No. The grade describes the container's condition. The plans for a modular home built in a factory go through the State Fire Marshal's plan review, and a home built on site goes through the local building department.
The starting prices on this site are for the Wind and Water Tight grade: $2,041 for a 20ft and $2,730 for a 40ft, both delivered in Gulfport as of October 14, 2026.
No. Whatever the grade, the truck unloads along a straight line of 110 feet for a 20ft container or 130 feet for a 40ft, and it needs 15 feet of overhead room to drive in, 22 feet over the unloading path and 10 feet of width.
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