Freight quotes look simple until the first invoice arrives carrying four line items nobody mentioned. Moving cargo by intermodal container means buying a sequence of services collection, port handling, the sea leg, the inland leg, final delivery from parties who each price their own segment. Businesses that manage this well are rarely the ones who found the cheapest headline rate. They are the ones who worked out which costs are fixed, which are avoidable, and which only surface once the schedule slips.
Who Does What in the Chain
The carrier operates the vessel and sells the sea leg. A freight forwarder buys space from carriers and resells it, usually bundling inland legs and paperwork. An NVOCC issues its own bill of lading while using someone else ships. Hauliers handle the road move at each end, and customs brokers clear the goods. A small shipper dealing directly with a carrier gets the sea leg and very little else. A forwarder costs more per unit but absorbs coordination. Which arrangement suits you depends less on volume than on whether anyone internally has time to chase exceptions.
Full Load or Shared Load
A full container load gives you the whole box: you seal it, no other shipper cargo touches it, and the rate applies regardless of how empty it runs. Less than container load means your pallets are consolidated with other goods at origin and deconsolidated at destination. LCL looks cheaper on small volumes but adds two handling steps, two sets of delay, and shared exposure to whatever paperwork problem another shipper creates. The crossover usually sits around 13 to 15 cubic metres, beyond which a full 20-foot unit tends to be both cheaper and faster.
Drayage Is Not a Rounding Error
The road legs at each end are short in distance and disproportionate in cost. A 40 km move can absorb a meaningful fraction of a long-haul sea rate, because it ties up a truck, a chassis and a driver for most of a day once terminal queuing is counted. Costs climb further when the delivery site cannot take a full-length trailer, when the receiver has no forklift and the load must come off by tail lift, or when an appointment is missed and the trip runs twice. Have drayage quoted separately at both ends before comparing offers.
Rail or Road for the Long Middle
Where the inland distance is significant, rail generally wins on cost and fuel per tonne-kilometre while road wins on flexibility and door-to-door timing. Rail runs to fixed schedules and fixed terminals, so a shipment missing a cut-off waits for the next service rather than departing an hour later. Road carries no such constraint but prices rise steeply with distance. Because a standard GP container is accepted on both, the decision can often be taken per shipment rather than locked into a contract worth confirming with your forwarder rather than assuming.
Free Time, Demurrage and Detention
Two charges catch new shippers repeatedly. Demurrage accrues while a loaded box sits inside the terminal beyond the agreed free days. Detention accrues once the box has left the terminal but has not been returned empty within the allowance. Both bill per day per unit, and both compound quietly while somebody waits on a customs query or a warehouse slot. Free time is negotiable, and negotiating it costs nothing at the point of booking. Ask how many days you get, when the clock starts, and whether it pauses over weekends and public holidays.
The Paperwork That Stops the Box
A commercial invoice and packing list that disagree will hold a shipment. The bill of lading must name the correct consignee and notify party, because amending it after issue costs a fee and days. Certificates of origin, fumigation certificates for timber packaging and any product-specific permits need to exist before the vessel sails, not afterwards. The practical discipline is having someone check the document set against the booking on the day the box is stuffed, while the cargo is still reachable and the mistake is still cheap to fix.
Declare the Weight Properly
The verified gross mass of a packed unit must reach the carrier before loading. Get it wrong and the box may be refused, or worse, stowed on the basis of a figure that is not true – a stability problem for the vessel and a liability problem for you. Either weigh the packed unit, or weigh the cargo and add the tare stencilled on the door, then keep the record. This is one of the few requirements in the whole chain where no informal workaround exists.
Know Who Carries the Risk
The Incoterm on the purchase order decides where responsibility transfers, and buyers routinely agree to terms without checking what they have accepted. Under EXW the buyer owns the problem from the supplier loading bay onwards, including export clearance. Under DDP the seller owns it to the door. Everything else sits between those poles. Marine cargo insurance is separate from carrier liability, which is capped by convention at a level well below the value of most consignments, so relying on the carrier to make you whole after a loss is a mistake worth avoiding before it is tested rather than after.
Build the Schedule Backwards
Start from the date goods must be on the shelf and work back through delivery, customs clearance, port dwell, the sea leg, terminal cut-off, and the days needed to stuff and haul. Add slack for a missed sailing, because vessels get skipped and rolled bookings are routine at peak. A business that plans intermodal container movements to the cut-off date rather than the sailing date absorbs ordinary disruption without paying for airfreight to rescue a quarter.
