What is the difference between CWO and WWT cargo containers?

CWO (Cargo Worthy) containers have valid CSC certification and can be used for ocean freight, intermodal rail, and international shipping. WWT (Wind & Water Tight) containers are weatherproof but lack current shipping certification, making them suitable only for ground storage and domestic trucking. CWO costs $300-500 more but is required if you plan to ship goods internationally.

Do I need a CSC-certified container for domestic trucking?

No, CSC certification is not required for domestic trucking. A WWT (Wind & Water Tight) container is sufficient for over-the-road transport within the United States. CSC certification is only required for ocean freight and intermodal rail transport. You can save $300-500 by choosing WWT if you're only using the container for domestic ground transport or stationary storage.

What are the standard cargo container sizes for shipping?

The two most common ISO cargo container sizes are 20-foot (1 TEU) and 40-foot (2 TEU) containers. Standard height is 8'6", while High Cube containers are 9'6" tall. A 20' container holds approximately 1,172 cubic feet with a max payload of 47,900 lbs. A 40' High Cube holds about 2,700 cubic feet with a max payload of 58,820 lbs.

What volume discounts are available for bulk cargo container orders?

We offer tiered volume pricing: 1-2 units at standard list price, 3-9 units receive 5-10% off with priority scheduling and combined delivery discounts, and 10+ units qualify for custom fleet pricing with maximum discounts and dedicated logistics support. Contact our sales team for bulk quotes.

What does ISO 668 compliance mean for cargo containers?

ISO 668 is the international standard that defines the dimensions, ratings, and handling features of intermodal cargo containers. Compliance ensures containers can be safely stacked, lifted by standard equipment, and transported via ship, rail, or truck anywhere in the world. All our cargo containers meet ISO 668 specifications.

For Logistics Professionals

ISO Cargo Containers Ready for Transport

Certified intermodal containers for freight, shipping, and logistics operations. CSC-compliant units available for ocean, rail, and truck transport.

CSC Certified

ISO 668 Compliant

Bulk Pricing

View Specifications

Available Inventory

20' GP (General Purpose) CWO Available

TEU: 1.0 Tare: 4,850 lbs Max: 47,900 lbs

$2,100 FOB Tulsa

40' GP (General Purpose) CWO Available

TEU: 2.0 Tare: 8,380 lbs Max: 59,040 lbs

$2,850 FOB Tulsa

40' HC (High Cube) CWO Available

TEU: 2.0 Tare: 8,600 lbs Max: 58,820 lbs

$3,250 FOB Tulsa

All CWO units include valid CSC plate. Volume discounts available for 3+ units.

Understanding Cargo Container Grades

For intermodal transport, container certification matters. Here's what each grade means for your logistics operations.

Cargo Worthy (CWO)

For Shipping

Required for ocean freight and intermodal transport. Containers have been inspected and certified to meet international safety standards for shipping.

Certification Requirements:

Valid CSC Plate - Convention for Safe Containers certification
Structural Integrity - Passed load testing for stacking
IICL-5 Standard - Institute of International Container Lessors
Forklift Pockets - Verified for safe handling

Use CWO When:

Shipping via ocean freight
Intermodal rail transport
International export operations
Shipping line requirements

Wind & Water Tight (WWT)

Ground Use

For stationary storage and ground transport only. Provides excellent protection but lacks current CSC certification for ocean shipping.

Condition Standards:

Weatherproof - No leaks, doors seal properly
Structurally Sound - Safe for ground stacking
Functional Hardware - Locks, hinges, gaskets work
No CSC Plate - Cannot be used for ocean shipping

Use WWT When:

On-site storage at facilities
Domestic trucking only
Yard storage and staging
Lower cost is priority

Quick Reference: Which Grade Do You Need?

Transport Method	CWO Required?	Notes
Ocean Freight (FCL)	Yes	Shipping lines require valid CSC plate
Intermodal Rail	Yes	BNSF, UP require CSC certification
Domestic Trucking	No	WWT sufficient for over-the-road
Yard Storage	No	WWT provides same protection
Construction Site	No	Save $400+ with WWT grade

Technical Specifications

ISO 668 compliant dry cargo containers. All dimensions meet international standards.

20' Dry Container (GP)

ISO Type: 22G1 | TEU: 1.0

External Dimensions

Length	20' 0" (6.058m)
Width	8' 0" (2.438m)
Height	8' 6" (2.591m)

Internal Dimensions

Length	19' 4" (5.898m)
Width	7' 8" (2.352m)
Height	7' 10" (2.393m)

Weight & Capacity

4,850 lbs

Tare Weight

47,900 lbs

Max Payload

1,172 ft³

Cubic Capacity

40' High Cube Container (HC)

ISO Type: 45G1 | TEU: 2.0

External Dimensions

Length	40' 0" (12.192m)
Width	8' 0" (2.438m)
Height	9' 6" (2.896m)

Internal Dimensions

Length	39' 5" (12.032m)
Width	7' 8" (2.352m)
Height	8' 10" (2.698m)

Weight & Capacity

8,600 lbs

Tare Weight

58,820 lbs

Max Payload

2,700 ft³

Cubic Capacity

Door Opening Specifications

7' 8"

Door Width (20' & 40')

7' 5"

Door Height (Standard)

8' 5"

Door Height (High Cube)

270°

Door Swing

Volume Pricing

Significant discounts available for bulk orders. Contact us for fleet pricing.

1-2

Units

Standard Pricing

List Price

Standard delivery available
Inspection report included
5-year warranty

View Inventory

Frequently Asked Questions

Common questions about cargo containers for shipping and logistics operations.

Need Cargo Containers for Your Operations?

Whether you need one unit or a hundred, we have the inventory and logistics expertise to support your shipping and storage operations.

CSC-certified units available
Bulk and fleet pricing
Delivery coordination available

Request a Quote

Tell us about your container requirements and we'll provide a detailed quote within 24 hours.

Or call: (918) 555-1234