Choosing a heavy-duty corrugated box comes down to six factors: cargo weight, size, shipping mode, export requirements, stacking demands and budget. The wrong flute or wall count means either wasted cost or crushed goods in transit.
1. The Six Selection Factors
- Cargo weight – around 50 kg: double-wall; 150 kg and above: triple-wall;
- Cargo size – the larger the box, the higher the strength required;
- Shipping mode – sea freight needs moisture-resistant boxes, air freight favors lightweight ones;
- Export or not – paper-based heavy-duty boxes need no fumigation, unlike wooden crates;
- Stacking – taller stacks demand higher edge crush strength (ECT);
- Budget – pick the material grade that fits your budget.
2. Quick Reference Table
| Condition | Recommended Option |
|---|---|
| Cargo up to 50 kg | Double-wall (BC flute) |
| Cargo 150 kg and above | Triple-wall |
| Sea freight / export | Moisture-resistant + fumigation-free paper box |
| Multi-layer stacking | High-ECT flute combination |
Not sure? Send us your product details (weight, dimensions, shipping mode) and we will recommend a solution. GuardP (ISO 9001 certified, Guangzhou, China) specializes in custom heavy-duty boxes – contact us for a quote.