Oct 19, 2026Guides/Insights
Why Are EVA Case Shipping Costs High? Carton Size and Volumetric Weight Explained
Learn why lightweight EVA carrying cases can have high international shipping costs and how carton dimensions, volumetric weight and packing methods affect freight charges.
Custom EVA carrying cases are relatively lightweight, but international shipping costs can sometimes be surprisingly high.
The reason is simple: freight charges are not always based on actual weight.
For bulky but lightweight products such as EVA cases, carton dimensions can significantly affect shipping costs.
Why Does Carton Size Matter?
EVA cases maintain their molded shape during packing.
Unlike soft fabric bags, they cannot always be compressed or folded to reduce shipping volume.
As a result, an export carton may occupy considerable space even when its actual weight is relatively low.
This is especially important for large equipment cases and demonstration carrying cases.
What Is Volumetric Weight?
Volumetric weight is a calculated weight based on the space a package occupies.
For some international express services, a common calculation is:
Volumetric Weight (kg) = Length × Width × Height (cm) ÷ 5,000
For example, consider a carton measuring 60 × 50 × 40 cm.
Its calculated volumetric weight is:
60 × 50 × 40 ÷ 5,000 = 24 kg
If the actual carton weight is only 12 kg, an express carrier using this calculation may charge based on 24 kg rather than 12 kg.
The applicable divisor, rounding rules and charges depend on the carrier and service.
How Can Buyers Reduce Shipping Costs?
The first step is to review the packing arrangement before confirming freight charges.
Possible improvements include:
- Choosing a carton size that fits the cases efficiently
- Reviewing how many cases are packed per carton
- Avoiding unnecessary empty space
- Checking carrier size and weight restrictions
- Comparing suitable air, sea and other freight options
However, reducing carton size should never compromise the protection of the finished cases.
Why Should Carton Details Be Confirmed Before Shipment?
A shipping estimate based on unconfirmed carton dimensions may change after final packing.
Buyers should request:
- Final carton length, width and height
- Quantity per carton
- Net and gross weight
- Total number of cartons
- Total shipment volume
- Confirmed shipping method
These details are particularly important when comparing door-to-door quotations from different freight providers.
Consider Freight Cost Before Finalizing the Case Size
A slightly larger EVA case may not have a major effect on manufacturing cost, but it can change packing efficiency and total shipment volume.
For high-volume orders, case dimensions and carton arrangements should be reviewed together.
At Bravie Case, we recommend considering export packing during project development rather than leaving it until the goods are ready to ship.
Planning a Custom EVA Case Order?
Share your required case dimensions, estimated quantity and destination country with Bravie Case.
We can coordinate the case and carton specifications so you can evaluate product and transportation costs more accurately before confirming your order.
