Shipping: chargeable weight, routes and consolidation
Most shipping surprises are arithmetic, not bad luck. Once you know that couriers bill on chargeable weight — the greater of actual and volumetric — the rest of the decisions become straightforward.
Chargeable weight, in one paragraph
A courier measures your parcel's three dimensions, converts them into a theoretical weight using a divisor, and compares it with the scale weight. You pay for whichever is greater. The divisor varies by carrier and route, commonly in the 5000–6000 range for centimetres, so a 60×40×30 cm box works out to roughly 12–14 kg of volumetric weight no matter how little it weighs.
This is why a puffer jacket can cost more to ship than a pair of boots. It is also why the cheapest parcel is usually the one with the least empty space in it.
What actually changes the price
| Factor | Effect |
|---|---|
| Chargeable weight | The dominant term. Actual versus volumetric, whichever is higher |
| Route | Differ by speed, handling, cover and which goods they accept |
| Country of destination | Determines available routes, duty thresholds and documentation |
| Battery, liquid, magnet items | Excluded from many routes or restricted to special ones |
| Insurance or cover | Often optional and priced as a percentage of declared value |
| Repacking / reinforcing | Sometimes charged, and usually worth it on fragile or boxed items |
Consolidation: when it saves money, and when it does not
Consolidating means you let several orders accumulate and submit them together as one parcel. It usually wins because the fixed handling portion of a shipment is paid once instead of several times.
It can lose when the combined parcel crosses a weight ceiling that moves it to a more expensive rate, or when consolidating pulls items out of their original packaging and you wanted the boxes. It also loses when the storage window runs out while you wait — always price the storage cost of waiting against the shipping saving.
- Two light parcels sometimes beat one heavy parcel — quote both
- Request the packed weight and dimensions before submitting
- Wrap or bag items that go in without their retail boxes
- Confirm what each route's weight ceiling is before committing
Customs, duties and declaration
International parcels are declared at a value. Undervaluing to reduce duty is a common shortcut and a bad one: if the parcel is damaged or lost, cover is usually capped at the declared value, so you have insured it for less than it cost.
Duty thresholds, VAT rules and the treatment of personal imports vary by country and change. Confirm the current position for your own country before ordering — a rule that was true last year may not be now. Keep the order screenshots and the declaration details together in one folder.
The five-minute pre-shipment check
Before you submit a parcel: confirm every item has been inspected; confirm the packed weight and dimensions; price two routes; check that no item is restricted on the route you picked; decide on cover; and note the free storage deadline. Five minutes here is the cheapest insurance available.
How do I calculate volumetric weight?
Do I have to pay duty?
What is the free storage period?
Can I ship batteries or liquids?
Is insurance worth it?
Keep reading
Kakobuy QC Checklist: 12 Checks Before You Ship
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Kakobuy Shipping Cost: How the Number Is Actually Built
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Kakobuy Coupons & Shipping Codes: How to Check Them Honestly
How shipping coupons and event codes actually work, where they apply, when they expire, and how to verify a code before you build an order around it.