Cargo Worthy: The Grade Most Builds Start With

Recommended for Most Builds
Cargo Worthy (CW) is the grade we sell most of — boxes that still carry an ISO/CSC certification and have cleared inspection for ocean freight.
The frame is solid, the doors latch, the floor's intact. A bit of surface rust or a dent here and there is par for the course — and none of it shows once the walls are lined.
Solid steel without the premium price — the grade most conversions are built on.
How the Four Grades Line Up
| Feature | One-Trip | Cargo Worthy | WWT | As-Is |
|---|---|---|---|---|
| Appearance | Like new | Good | Fair | Varies |
| Structure | ★★★★★ | ★★★★ | ★★★ | ★★ |
| Conversion fit | Excellent | Excellent | Good | Experienced only |
| Prep needed | Minimal | Light | Moderate | Significant |
| Price tier | $$$ | $$ | $ | $ |
| Pick it for | Premium builds | Best value for most projects | Budget builds | DIY experts |