Double wall cardboard boxes use two layers of fluting for extra strength, which matters when a shipment is heavy, fragile or destined for repeated handling. The second wall resists crushing under stacked loads and cushions contents better than a single-wall box through a demanding transit. The second wall is there for a reason, so specify it where weight, fragility or stacking justifies it rather than by default.
When double wall earns its place
Made to your custom size in corrugated cardboard, these boxes can be dimensioned around your load. The heavier the contents or the taller the stack in storage, the more the second wall pays off; lighter goods may not need it, so match the specification to the actual job rather than over-building every parcel.
Sizing and closure
- Internal size matched to the packed load
- Double wall for weight, stacking or rough handling
- A secure closure that keeps the flaps down under load
If in doubt about whether single or double wall suits your goods, pack a prototype at real weight and check how it holds under a stack before ordering. Over-building every parcel adds cost and material, so matching the wall to the real load keeps the specification honest.
