Woodchip Freight Rates: Compare the Charging Units

Key takeaways

• State the charging unit beside every quoted rate.
• Distinguish the invoice calculation from an internal unit-cost presentation.
• Apply each offer's actual quantity determination and service scope.
• Test unresolved conversion inputs without substituting a generic moisture assumption.
• Keep the resulting price comparison separate from cargo suitability and contractual interpretation.

Ask what number enters the invoice calculation

A rate is incomplete without its unit and quantity determination. Ask whether the proposal applies to the physical shipment mass, an agreed commercial quantity, a fixed parcel or another explicitly defined basis.

Do not infer the answer from the buyer's commodity purchase contract. The shipping service may use a different basis. Equally, do not assume every offer in the enquiry uses the same unit simply because the parties received the same cargo description.

The comparison should show the rate, the applicable quantity and the resulting subtotal for each proposal. This gives the reviewer a complete calculation rather than a list of attractive-looking rates.

Also state how the payable quantity becomes final. A provisional planning estimate may support an early comparison without establishing the eventual amount. If the offers use different determination points or evidence, identify that difference and obtain the relevant commercial clarification.

Separate charging terms from reporting choices

A buyer may choose to report transport cost per dry tonne for its own analysis even where the service provider charges per physical tonne. That internal reporting choice does not change the provider's invoice formula.

Conversely, if an actual offer charges on an agreed dry quantity, the quantity determination is part of the charging mechanism rather than merely an analytical denominator. These are different situations and should not be described with the same shorthand.

FAO's terminology distinguishes wet-basis and dry-basis moisture expressions. Their labels should remain explicit when quantity inputs depend on them. FAO bioenergy terminology

For a real transaction, apply the agreed measurement and commercial determination. The example below defines a fictional quantity relationship solely to make the comparison inspectable. It is not a statement that either charging arrangement is standard in woodchip trade.

Illustrative comparison of unlike rate units

ILLUSTRATIVE fictional quotes. Both proposals serve the same 20,000-tonne physical parcel and the same completed receiving endpoint. For this example only, the agreed dry quantity is 12,000 tonnes. No actual moisture measurement or typical cargo characteristic is implied.

Proposal A charges USD 36 per physical tonne and requires USD 40,000 of additional services to reach the common endpoint. Proposal B charges USD 60 per agreed dry tonne and requires USD 20,000 of additional services.

The headline rates differ substantially, but their freight subtotals are identical under the stated quantities. The complete proposals differ because of the additional services: B costs USD 20,000 less.

As a sensitivity only, if the agreed dry quantity were 11,000 tonnes while the physical quantity and all stated charging terms remained fixed, B's total would be USD 680,000: 11,000 multiplied by USD 60, plus USD 20,000. A would remain USD 760,000 under its fictional physical-quantity basis.

The sensitivity shows which input affects each payment formula. It does not establish that a different dry quantity is an equivalent product purchase, that the buyer wants that change, or that real contracts would hold every other term fixed.

Identify where provisional inputs matter

An unresolved quantity basis can affect the comparison in two ways. It can make the physical shipment proposal uncertain, and it can make the quoted payment uncertain. Identify which uncertainty applies to each offer.

If the physical quantity is firm but a commercial conversion remains provisional, the desk can show the payment sensitivity without pretending the invoice is final. If the physical quantity itself may change, the vessel proposal and necessary services may also need reassessment.

Do not hold a price fixed outside the conditions of the offer. A rate quoted for one parcel may not apply to a materially revised quantity or arrangement. Ask the provider to confirm the relevant alternative rather than extrapolating a convenient line indefinitely.

The purpose of sensitivity analysis is to locate the consequential input. It is not permission to substitute an invented value for missing parcel evidence.

Normalize service scope after normalizing units

Matching units does not make two offers equivalent if their service boundaries differ. Identify which work is included and which necessary work remains outside each proposal.

Use a common endpoint and add supported costs for the missing services. If a required service is not arranged or priced, mark the proposal incomplete. A zero entry would imply a commercial fact that the desk does not have.

Check for double counting as well. A receiving component included in the freight should not be added again merely because another proposal prices it separately. Trace each cost to a physical service and identify the point at which that service ends.

A proposal with a higher total may still provide value through a different commitment or timing profile. Explain that value separately rather than manipulating the cost boundary to make the preferred proposal appear lower.

Keep the recommendation tied to the evidence

The final comparison should state the parcel basis used, the actual rate units and any provisional inputs. A reader should be able to reproduce the totals without guessing which quantity belongs to which offer.

Explain what would change the ranking. It might be the agreed dry quantity, an additional service charge or a revised physical parcel. If several inputs remain uncertain, show a small number of coherent alternatives rather than an unlabelled range that hides their causes.

Before commitment, confirm that the actual offer still applies to the described cargo and service. The desk's normalized table is an analytical view of the offers; it does not amend their wording. Any uncertain contractual interpretation needs a separate qualified review of the current agreed text.

Common mistakes

The obvious mistake is comparing the numbers 36 and 60 without comparing their units. A subtler error is using the buyer's internal reporting denominator as though it were the provider's charging basis.

Another mistake is changing a dry quantity input while leaving an unsupported vessel or service assumption untouched. Finally, do not treat equal transport totals as evidence that different cargo parcels have equal commercial value. The price comparison answers the movement question, not the entire commodity decision.

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