Full Container Load (FCL)

What buying a whole container actually buys

A full container load is exclusive use of the box. One shipper's cargo goes in, the container is closed and sealed where it was packed, and in normal circumstances it is not opened again until it reaches the consignee or an authority requires it to be.

That exclusivity is the product, and it is not primarily about volume. It is about cargo being treated as one sealed unit rather than as individual packages passing through shared handling. Fewer touches means fewer opportunities for damage, mis-sorting and pilferage, and it means the shipment's timing does not depend on anyone else's consignment being ready.

The trade-off is that the whole box is paid for whether or not it is full. Under-using a container is a real cost, which is why the choice between a full container and shared space is worth making deliberately for each flow rather than inheriting it.

Cubing out and weighing out

Two limits apply to every container: the space inside it, and the maximum weight it may carry. Which limit the cargo reaches first is a property of the goods, and it changes the answer to almost every other question about the shipment.

Light, bulky cargo fills the space long before it approaches the weight limit — it cubes out. For that cargo, extra internal height or length is worth paying for and the weight limit is close to irrelevant. Dense cargo does the opposite: it reaches the weight limit while the container still looks half empty — it weighs out. Here internal volume buys nothing, and the binding constraint moves outside the container altogether, because road weight limits on the inland legs are set by the road authority and the vehicle, not by the shipping line.

Combining the two is how a container is used well: dense goods on the floor, lighter goods above them, loaded so that weight is spread rather than concentrated at one end. A container that is within its total weight limit can still be undeliverable by road if the load sits badly inside it, and that is discovered at a weighbridge rather than at the packing bay.

Choosing the equipment

The default is a general-purpose dry container, which exists in more than one length and in a taller high-cube version. The taller box is the usual answer for cargo that cubes out. A shorter box is often the better answer for cargo that weighs out, because a heavy load in a short container is easier to move legally by road than the same weight spread through a long one.

Beyond the dry box, the choices are driven by the shape and nature of the cargo rather than by preference. Open-top equipment exists for goods that must be loaded from above rather than through the doors. Flat racks exist for goods too wide or too tall to be enclosed. Refrigerated units exist for cargo with a temperature requirement, which is a distinct service with its own planning and its own failure modes.

Equipment availability is not uniform. A given container type is not equally available at every port at every moment, and a routing that depends on unusual equipment should be planned in that knowledge. What is available, where, and when is confirmed at booking and never inferred from a previous shipment.

Who packs, who unpacks, and who is answerable

In the common arrangement the shipper packs the container at their own premises and the consignee empties it at theirs. Whoever packs it is responsible for how the cargo is secured inside, because the shipping line carries a sealed box and does not inspect its contents.

That responsibility is more than a formality. Cargo moves at sea in ways it does not on a road trailer, and a load that survived a domestic delivery can be destroyed on a voyage if it was not braced, chocked and dunnaged for one. Damage traced to how the container was packed is not the carrier's damage.

The weight of a packed container also has to be established and declared before the box is loaded, and that declaration belongs to the shipper. The methods accepted and the party the declaration goes to vary by port and by carrier, so both are confirmed before packing rather than discovered afterwards.

Where a shipper cannot pack a container on site, packing happens at a facility instead and the cargo is delivered to it. That changes the cost structure and introduces an extra handover, and it belongs in the quote from the start rather than appearing at the end.

• Seal integrity is checked at handovers; a broken or substituted seal becomes an incident, not a detail
• Securing materials are part of the cargo plan, not an afterthought at the container doors
• Access at both ends decides whether a container can be delivered at all: turning room, hard standing, and unloading equipment

Demurrage and detention, in plain terms

These two words cause more unexpected cost in container shipping than anything else, and they are routinely confused, because both are charges for keeping equipment too long.

Demurrage concerns a container sitting inside the terminal beyond the period allowed for it. Detention concerns a container that has left the terminal and is in the shipper's or consignee's hands beyond the period allowed for returning it. The first is about occupying the port's space; the second is about holding the carrier's equipment.

Both run from a free period the carrier defines. How long that period is, when it starts and what applies afterwards vary by carrier, port, trade and contract, so they are established for the specific booking rather than assumed. What does not vary is the mechanism: the clock runs while the cargo is not moving, and the usual reason it is not moving is that a document, an instruction or a collection was not ready in time.

The defence is preparation rather than negotiation. Documentation complete before arrival, clearance instructed with whoever is handling it, and haulage arranged before the container is released are what keep a free period sufficient. Nothing about the charge is negotiable once the equipment is already standing still.