Freight rate
A freight rate prices a specific move: what it costs to ship between two points by a given mode, quoted per container, per truckload, per hundredweight, or per kilogram. Rates come in two forms: contract rates negotiated for a period (commonly a year) and spot rates priced for a single shipment at current market conditions. The spread between the two is the basic signal of freight markets.
Examples
Lane imbalance: A dry van load prices at $2.41 per mile outbound from Los Angeles and $1.55 per mile inbound, because far more freight leaves Southern California than returns. A shipper with flows both ways bids them as a paired round trip and lands a $1.92 blended average.
Spot vs contract swing: A shipper awards a lane at $1,840. In a soft quarter spot dips to $1,520 and the temptation is to cheat the contract; a year later spot hits $2,300 and the carrier honors $1,840 only because the shipper kept tendering through the dip.
Invoice vs quote: An LTL shipment quoted at $487 invoices at $611 after a re-weigh (540 lb actual against 460 declared) and a liftgate fee. The fix is accurate dimensions and weights at booking, not an argument after delivery.
Definition
Rates are set lane by lane, and the lane is the unit of analysis. Chicago to Dallas and Dallas to Chicago can price 30% apart because a rate reflects the balance of freight and trucks in each direction: a carrier that must deadhead home empty prices the headhaul to cover the round trip. Fuel passes through as a surcharge, seasonality moves capacity (produce season, holiday peak, Lunar New Year on ocean lanes), and equipment type sets its own market (dry van, reefer, flatbed).
The quoted rate is rarely the invoiced total. Line-haul plus fuel is the base; accessorial charges for detention, liftgates, residential delivery, or re-weighs land on top. Comparing carriers on line-haul alone is how shippers end up surprised at freight audit.
Contract rates trade price certainty for tender commitments, and they hold only if both sides behave: in soft markets shippers leak volume to cheap spot, in tight markets carriers reject tenders and the load reprices upward anyway. That dynamic is why freight procurement teams track their contract-to-spot mix and benchmark big lanes against published indices instead of trusting last year's award.
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