Every guide to this question gives you the same answer: switch to a full container at about fifteen cubic metres. That number is not wrong, but it is a snapshot of a market that moves — and quoting it as a rule is how buyers end up paying for a container they did not need, or squeezing twenty cubic metres into loose cargo because someone told them fifteen was the line.
The break-even is a division. Once you know how to do it, you stop needing the rule of thumb.
How LCL is actually billed
Less than container load is quoted per cubic metre, and that is where most of the confusion starts, because it is not billed purely on volume. The standard basis is weight or measure: the carrier charges whichever is greater, one cubic metre or one thousand kilograms.
For most consumer goods this never bites — a cubic metre of storage boxes weighs far less than a tonne. For dense cargo it bites hard. A cubic metre of hand tools or ceramic tiles can weigh more than a tonne, and you will be billed on the weight while the quotation in your inbox says "per CBM". Nothing dishonest has happened; you simply read a rate without reading its basis.
The charges that are not in the per-CBM rate
This is the single most common reason LCL looks cheaper than it turns out to be. The headline rate usually covers the ocean leg. Around it sit charges that scale per shipment rather than per cubic metre:
- Origin CFS handling. Your cargo has to be delivered to a container freight station, received, measured and consolidated into somebody else's container.
- Destination CFS and deconsolidation. The same in reverse, and this is frequently the largest single surprise on an LCL invoice.
- Terminal handling at both ends. Charged on the shipment, not on your share of it.
- Documentation and customs clearance. A five-cubic-metre shipment needs the same paperwork as a full container.
The practical consequence: small LCL shipments carry a fixed-cost burden that gets worse the smaller they are. At one cubic metre, per-shipment charges can exceed the freight itself.
The rates we actually apply
These are the numbers our landed cost calculator uses, published rather than described:
| Line | Rate | Basis |
|---|---|---|
| Ocean freight, LCL | $130 / CBM | Charged on the space the cargo occupies. |
| Air freight | $6.6 / kg | Charged on chargeable weight — actual or volumetric, whichever is greater. |
| Export clearance and documents | $120 | Per shipment. Does not scale with quantity. |
| Import customs broker | $175 | Per shipment, amortised across the units. |
| Cargo insurance | 0.4% | On CFR value, to avoid a circular calculation. |
| Inland to port, China | 2% | Factory to loading port, on goods value. |
| Last mile at destination | 2% | Port to your door, on CIF value. |
These are the rates our landed cost calculator applies for China to the United States, ordinary commercial cargo, read live from the same settings the engine uses. They are reviewed quarterly, and they are indicative of market levels rather than a quotation for your shipment.
Doing the break-even yourself
You need two quotes: an all-in rate for a 20-foot container on your lane, and a per-cubic-metre LCL rate on the same lane. Then:
Break-even volume = all-in FCL rate ÷ LCL rate per CBM
At an LCL rate of $130 per cubic metre and a 20-foot container quoted all-in at $2,100, the break-even is roughly sixteen cubic metres. Above that, the container is cheaper even though you are not filling it — a 20-foot holds around twenty-eight usable cubic metres, so at the break-even you are paying for air and still coming out ahead.
Now notice why the rule of thumb is unreliable. If container spot rates spike — and on this lane they periodically double — the same arithmetic pushes the break-even past twenty cubic metres. When rates collapse it can fall below ten. The division stays valid; the answer moves.
Two adjustments make it more honest. Add the per-shipment charges to the LCL side, because they are real and they are not in the CBM rate. And if your cargo is dense, run the calculation on chargeable weight rather than volume, or you will be comparing the wrong quantities.
What changes besides the price
Transit time. LCL is slower than the sailing schedule suggests. Your cargo waits at origin to be consolidated with other shippers' goods, and waits again at destination to be deconsolidated. Adding one to two weeks over the equivalent FCL door-to-door is normal, and it is not the shipping line's fault — we break the whole schedule down in what sea freight transit times are actually made of.
Handling and damage. LCL cargo is loaded, unloaded, stacked and restacked alongside strangers' freight. Cartons are handled several more times than they would be in a sealed container. In fragile or bulky categories this is a real cost that shows up as breakage rather than as a line on the invoice — so export packing matters more, not less, when you ship LCL.
Control. A full container is sealed at the factory and opened at your warehouse. With LCL your goods share space with cargo you did not choose, on a schedule set by when the consolidator fills the box.
The paperwork is not the same either
The cost comparison gets all the attention, but the two modes also hand you different documents and different responsibilities, and that catches people out on a first shipment.
Who declares the container weight. Since 1 July 2016 a packed container cannot be loaded aboard a vessel without a verified gross mass under the SOLAS amendments. On a full container that obligation sits with the shipper named on the bill of lading, and a missing or late submission is a very ordinary way to miss a sailing. On LCL the consolidator handles it for the whole container, which is one genuine piece of administration you are buying along with the space.
What your bill of lading looks like. An LCL shipment normally travels on a house bill issued by the consolidator rather than a carrier bill. It works, it is standard, and it is what your customs broker will expect — but it means your contractual counterparty for the freight is the consolidator, not the shipping line. Worth knowing before something goes wrong rather than afterwards.
Who is responsible for what, and from where. Neither mode changes the Incoterm, and the Incoterm is what actually decides where your risk starts. A quotation that says FOB means the same thing whether the goods travel as twelve cubic metres of loose cargo or a sealed box; what changes is how many hands touch the cargo between the factory and the vessel. The ICC rules are the reference, and we work through the practical version in Incoterms for China imports.
Inspection timing. On LCL your cargo has to reach the container freight station by a deadline that is earlier than the vessel cut-off, because it still has to be consolidated. That pulls your inspection window forward by several days. Booking an inspection against the sailing date rather than the CFS delivery date is one of the more common ways a first LCL shipment goes wrong.
When a container wins even below the break-even
Price is not the only reason to book FCL. It is often the right choice at ten or twelve cubic metres when the cargo is fragile and the extra handling is a genuine risk, when the goods are high value and fewer touchpoints matter, when the delivery date is fixed and consolidation delay cannot be absorbed, or when you are shipping regularly enough that a predictable container schedule is worth more than the marginal saving.
Conversely, LCL is the right answer far more often than buyers new to importing assume. It is how most first orders should move, and there is nothing second class about it.
The two modes side by side
| LCL | FCL | |
|---|---|---|
| Billing basis | Per cubic metre or per tonne, whichever is greater | Per container, regardless of how full it is |
| Per-shipment charges | Proportionally heavy, and worst on very small shipments | Spread across a much larger consignment |
| Door-to-door time | Slower, by roughly one to two weeks | Same vessel, no consolidation wait |
| Handling of your cartons | Loaded, stacked and restacked alongside other cargo | Sealed at the factory, opened at your warehouse |
| Container weight declaration | Handled by the consolidator | Your obligation as named shipper |
| Transport document | Usually a house bill from the consolidator | Usually a carrier bill of lading |
| Inspection deadline | Pulled forward to the CFS delivery date | The vessel cut-off |
| Best suited to | First orders, trial quantities, anything below your break-even | Volume above the break-even, fragile goods, fixed dates |
Read it as a checklist rather than a verdict. The only row that decides the question on its own is the first one, and the break-even is the division above.
Where this fits in landed cost
Freight is one line among several, and in some categories it is not the decisive one. Dense goods are dominated by duty; bulky goods are dominated by freight. Before optimising the shipping mode, work out which kind of product you actually have — the landed cost calculator will show you the split, and the category cost pages work through it product by product.
