Used Container Grades Explained: WWT, CW, AS-IS, One-Trip

When shopping for a used shipping container, you’ll often come across grade classifications like WWT, CW, AS-IS, and One-Trip. For many first-time buyers, these terms can be confusing — but understanding them is crucial for making the right choice. At Yes Containers, we help customers across the U.S. find containers that fit their budget, site conditions, and intended use.

This guide breaks down each grade, explains what it really means, and shows you when to choose one over another.

Why Container Grades Matter

Not all shipping containers are equal. Containers are built tough, but years at sea expose them to dents, rust, and wear. Grading gives you a snapshot of a container’s condition so you know what you’re buying. The grade affects:

• Durability – how long it will last outdoors
  
• Cost – higher-grade containers come at a premium
  
• Appearance – some look nearly new, others heavily used
  
• Certification – some are still valid for cargo shipment, others only for storage
  

Choosing the wrong grade can leave you with unnecessary costs — or worse, a container that doesn’t meet your needs.

The Main Grades of Shipping Containers

Here’s what each grade means in practical terms:

1. One-Trip (Like New)

• Definition: Containers manufactured overseas and used just once to ship cargo to the U.S.
  
• Condition: Nearly flawless; paint is fresh, structure is sound, minimal dings.
  
• Best for: Customers who want the longest lifespan and the best appearance.
  
• Price Range: Higher than used containers, but with decades of service life ahead.
  

 Learn more about One-Trip Containers.

2. WWT (Wind & Water Tight)

• Definition: Retired from cargo use but guaranteed to keep out wind and rain.
  
• Condition: May have visible rust, dents, and faded paint, but still secure and weather-tight.
  
• Best for: Storage, workshops, or applications where appearance doesn’t matter.
  
• Price Range: Affordable and practical for most storage needs.
  

 See details on WWT Shipping Containers.

3. CW (Cargo Worthy)

• Definition: Certified as structurally sound and capable of carrying cargo internationally.
  
• Condition: Stronger structural integrity than WWT, but still shows age.
  
• Best for: Businesses needing containers that can be loaded, lifted, and shipped.
  
• Price Range: Slightly more than WWT, but still below One-Trip.
  

 Explore Cargo-Worthy Containers.

4. AS-IS

• Definition: Containers sold in their current condition, with no guarantees.
  
• Condition: May have holes, rust, or damaged doors; not suitable for weatherproof storage.
  
• Best for: Scrap use, creative projects, or buyers who plan to repair.
  
• Price Range: Lowest cost option, but highest risk.
  

 Learn about AS-IS Containers.

Container Grade Comparison Table

Choosing the Right Grade for Your Needs

When deciding, think about:

1. Purpose
   
   • Export? Go Cargo Worthy or One-Trip.
     
   • Storage only? WWT works fine.
     
   • Short-term or low budget? Consider AS-IS. 
2. Budget
   
   • If you want maximum longevity and can invest more upfront, One-Trip containers pay off in decades of use. 
3. Appearance
   
   • Customer-facing site? Consider One-Trip or Cargo-Worthy.
     
   • Backyard or construction site? WWT is cost-effective.

Pay on Delivery (POD) – Peace of Mind

One of the most common concerns customers share is about payment security. At Yes Containers, we proudly offer Pay on Delivery (POD) options. That means you only pay when the container arrives on your site, ensuring complete confidence in your purchase.

FAQs: Used Container Grades

Q: How long will a WWT container last?
A: With proper care (level placement, touch-up paint, drainage), many WWT containers last 10–15 years outdoors.

Q: Can AS-IS containers still be repaired?
A: Yes, many can be patched or reinforced, but the costs may outweigh savings unless you need scrap or a project container.

Q: Are Cargo Worthy containers better than WWT for storage?
A: Both are secure for storage, but CW is stronger structurally. If you don’t need international shipping certification, WWT often gives better value.

Q: Why are One-Trip containers worth the higher cost?
A: They provide decades of service life, higher resale value, and look almost brand new — perfect for businesses and long-term users.

Final Thoughts

Buying a shipping container doesn’t have to be confusing. By understanding grades — WWT, CW, AS-IS, and One-Trip — you can make a smart purchase that fits your needs and budget.

At Yes Containers, we make the process easy. Explore our container shop, check out our current offers, or get a quote today.

Have questions? Call us at (800) 223-4755 and talk to our team.