What is a loading meter (LDM)? The European carrier's complete guide
A loading meter (LDM) is one linear metre of trailer floor at the standard 2.4 m usable width - the unit European road freight carriers use to price groupage shipments. This guide explains the formula, pallet LDM values, billing rules, and how to reduce your LDM costs.
Logifie Team
Logistics Technology Experts
A loading meter (LDM, from the German Lademeter) is one linear metre of trailer floor measured across the full standard usable width of a European trailer, which is 2.4 m. It is the unit European road freight carriers use to price a shipment by the floor space it occupies rather than by its weight alone. In 2024, "grouped goods" - the Eurostat category that maps to groupage and part-load freight - accounted for 236.5 billion tonne-kilometres of EU road transport ( Eurostat, 2024 ), and every one of those consignments was priced on loading meters, not just kilograms. This guide explains what an LDM is, the formula every carrier uses, how it maps to pallet types, how it drives groupage pricing, and the contract traps that quietly inflate your freight bill.
236.5 bn tkm
Tonne-kilometres of grouped goods transported by road in the EU in 2024, every consignment priced in loading meters (Eurostat, 2024).
13.6 LDM
Loading meters in a full-length standard European curtainsider trailer (13.6 m internal length).
1,850 kg
Standard weight equivalent per loading meter on continental European routes. UK/Nordic routes use 2,000 kg per LDM.
What is a loading meter (LDM) and why does it matter in European freight?
A standard European curtainsider (also called a tautliner) has an internal loading area of roughly 13.6 m long, 2.45 m wide, and 2.7 m high. Because almost every trailer shares that same 2.4 m usable width, carriers stopped pricing partial loads on width and started pricing them on length. One loading meter is one metre of that length, occupying the full 2.4 m width. A full standard trailer therefore holds 13.6 LDM of floor space.
LDM matters because most freight that moves across Europe does not fill a whole truck. When a carrier consolidates many small shipments into one trailer - the practice known as groupage or less-than-truckload (LTL) - it cannot sell the same metre of floor twice. The loading meter is how it allocates the cost of that scarce floor space fairly between shippers. If your pallet sits on the floor and nothing can be stacked on top of it, you are paying for the full height of the trailer above that footprint, whether you use it or not.
This is also why LDM literacy has become commercially urgent in 2026. Capacity on dense corridors such as Poland-Germany and Romania-Germany has tightened as carriers absorb the ETS2 carbon cost, higher tolls, and a continental driver deficit the IRU puts in the hundreds of thousands. Tighter full-truckload capacity pushes more shippers toward groupage, and groupage is priced in loading meters. Understanding the unit is now the difference between a competitive quote and an overpaid one.
How to calculate loading meters: the formula every carrier uses
The loading meter formula is short and worth memorising:
LDM = (cargo length in metres x cargo width in metres) / 2.4
The 2.4 in the denominator is the standard usable trailer width. You multiply length by width to get the footprint in square metres, then divide by 2.4 to convert that footprint into linear metres of trailer floor.
Take a single Euro pallet measuring 1.2 m by 0.8 m:
1.2 x 0.8 / 2.4 = 0.4 LDM
So one Euro pallet on the floor consumes 0.4 loading meters. Two Euro pallets side by side fill the width and consume 0.8 LDM between them - one full metre of trailer length, near enough.
Stacking changes everything
If goods can be safely stacked, you divide the result by the stacking factor (the number of layers you can place on top of each other within the trailer's internal height). A pallet that is 0.4 LDM on its own becomes 0.2 LDM if two of them can be stacked, because the second pallet rides above the first and consumes no extra floor. Stackability is the single biggest lever a shipper controls. Carriers, sources such as Impargo and Eurosender both note, treat non-stackable freight as occupying the full height above its footprint - which is why a "do not stack" label can double your effective LDM.
Common pallet types and their LDM values
Most European carriers work from a small set of pre-set LDM values so they do not have to recalculate the formula for every standard pallet. The table below shows the common types, their footprint, and the floor space each consumes when placed on the floor without stacking. Values are drawn from the formula above and cross-checked against CalCargo .
| Pallet type | Footprint (L x W) | LDM (unstacked) | Notes |
|---|---|---|---|
| Euro pallet (EUR/EPAL) | 1.2 m x 0.8 m | 0.4 LDM | The European default; two fit across the width |
| Half Euro / display pallet | 0.6 m x 0.8 m | 0.2 LDM | Common in retail replenishment |
| UK / standard pallet | 1.2 m x 1.0 m | 0.5 LDM | Dominant in UK and Ireland flows |
| Industrial / block pallet | 1.2 m x 1.2 m | 0.6 LDM | Square footprint; heavier loads |
A practical check: two Euro pallets (0.4 + 0.4) fill one running metre of trailer, so a full 13.6 m trailer holds roughly 33 to 34 Euro pallets on the floor. If your freight is stackable to two layers, that doubles to around 66 pallets, and your LDM per pallet halves. The pallet you choose, and how you build it, is a pricing decision before it is a packing decision. For the wider trade-off between consolidating into groupage versus booking a full trailer, see our FTL vs LTL guide .
How European carriers use LDM to price groupage shipments
Groupage works on a hub-and-spoke model: collection vehicles feed regional terminals, freight is cross-docked and consolidated by destination, and line-haul trucks run the trunk legs between hubs. Rhenus, for example, runs daily cross-border LTL departures through its groupage network on exactly this pattern. Because dozens of shippers share each trailer, the carrier needs one neutral unit to split the cost. That unit is the loading meter.
In practice the carrier calculates your LDM, applies its rate per loading meter for the lane, and then checks that figure against a chargeable-weight floor. The bill is the higher of the two. This is the part most shippers miss: a light but bulky consignment is billed on space, while a small but dense consignment is billed on weight. The carrier always wins on whichever is greater, because selling the trailer twice is impossible. If you want to understand how the per-kilometre economics underneath these rates are built, our freight cost per kilometre guide breaks down the cost stack.
LDM vs CBM vs chargeable weight: what is the difference?
These three terms get used interchangeably and they are not the same thing. CBM (cubic metres) measures pure volume. LDM measures floor space, and it implicitly assumes full trailer height above that floor. Chargeable weight is the final billable figure the carrier actually invoices, derived from whichever metric produces the larger number.
European road freight uses standard conversion factors to translate between them, confirmed across carrier sources including EasyCargo and Goodloading :
| Metric | What it measures | Standard road-freight conversion | When it drives the bill |
|---|---|---|---|
| CBM | Volume (cubic metres) | 1 CBM = 333 kg | Light, voluminous, stackable freight |
| LDM | Trailer floor space | 1 LDM = 1,850 kg (Continent) | Non-stackable or full-height freight |
| Chargeable weight | Billable figure | Greater of actual vs converted | Always - it is the final number |
Two caveats matter here. First, the LDM-to-weight factor is not universal: it is commonly 1,850 kg per LDM on the Continent but 2,000 kg per LDM in the UK, Ireland, and the Nordics, and individual carriers set their own values. Always confirm the factor in your rate agreement. Second, chargeable weight is computed per shipment as the maximum of actual weight and the volumetric or LDM-derived weight - never the sum.
Minimum LDM and billing rules: what to watch out for in carrier contracts
This is where money quietly leaks. The formula is honest; the billing rules around it are where shippers overpay. Watch for these clauses:
- Minimum billing per LDM. Many carriers bill a minimum of 1,850 kg for every loading meter regardless of your actual weight. A 0.4 LDM Euro pallet weighing 300 kg can be charged as if it weighed 740 kg (0.4 x 1,850). The space, not the scale, sets the floor.
- Rounding up. Carriers typically round LDM up to the next 0.1, and some round to the next full 1.0 LDM. A consignment that calculates to 1.05 LDM may be billed as 1.1 or even 2.0 LDM. Confirm the increment.
- Non-stackable surcharge. Marking freight "do not stack" tells the carrier to reserve the full height above the footprint, so a 0.4 LDM pallet is billed as if it occupied that whole column. Only mark non-stackable when the goods genuinely cannot bear weight.
- Conversion-factor drift. A carrier quoting 2,000 kg per LDM instead of 1,850 kg raises every space-driven shipment by about 8 % before any rate change. Read the factor, not just the rate.
A quick billing audit checklist
Before you sign or renew a groupage contract, get these four numbers in writing: the rate per LDM for each lane, the LDM-to-kg conversion factor, the rounding increment, and the minimum billable LDM per consignment. Then re-run your last ten invoices against them. Any gap between the formula and the invoice is negotiable.
How to reduce your LDM and lower your freight costs
Because LDM is driven by footprint and stackability, every reduction in either lowers the bill directly.
- Make freight stackable wherever safe. Strong corner posts, load-bearing tops, and pallet collars convert a non-stackable column into a half-LDM pallet. This is the highest-leverage change available.
- Right-size the pallet. Two half-Euro pallets (0.2 LDM each) can be cheaper than one badly built Euro pallet if the goods fit. Consolidate part-pallets before tendering.
- Build square, build tight. Overhang beyond the pallet edge forces the carrier to allocate the next slot. Keep loads within the footprint.
- Tender complete, accurate dimensions. Carriers default to worst-case assumptions when data is missing. Accurate length, width, height, and a clear stackable/non-stackable flag prevent defensive over-billing.
LDM and your TMS: automating load planning and quoting
Calculating LDM by hand for a single pallet is trivial. Doing it across hundreds of daily consignments, each with its own dimensions, stackability flag, lane, and carrier conversion factor, is not. This is where a transport management system earns its keep. Logifie's transport management automation for load planning computes LDM and chargeable weight at the point of quoting, applies the correct per-lane factor, and flags when a shipment is space-driven versus weight-driven so your team quotes from the same number the carrier will bill.
Automation also closes the loop on the operational side. A driver app for load documentation captures actual pallet counts and stackability at collection, so the LDM you quoted is the LDM you can defend on the invoice. And real-time tracking for groupage loads gives visibility across the hub-and-spoke legs where consolidated freight is most likely to lose its audit trail. Together these turn LDM from a manual calculation into a controlled, repeatable part of the quote-to-cash process.
If you move part-loads across European corridors and want pricing that reflects real loading meters rather than worst-case assumptions, get a loading-meter-aware freight quote and let the numbers do the negotiating.
Frequently asked questions
What does LDM stand for in shipping?
LDM stands for loading meter (German: Lademeter). It is one linear metre of trailer floor across the standard 2.4 m usable width, used to price freight by the floor space it occupies. A full standard 13.6 m European trailer holds 13.6 LDM.
How do you calculate loading meters?
Multiply the cargo length in metres by its width in metres, then divide by 2.4. For example, a Euro pallet of 1.2 m by 0.8 m is 1.2 x 0.8 / 2.4 = 0.4 LDM. If the goods are stackable, divide the result by the number of layers you can stack.
How many Euro pallets fit in a standard trailer?
A standard 13.6 m trailer holds roughly 33 to 34 Euro pallets on the floor, because two Euro pallets (0.4 LDM each) fill one running metre. If the freight is stackable to two layers, that capacity roughly doubles to around 66 pallets.
What is the difference between LDM and CBM?
CBM measures pure volume in cubic metres. LDM measures trailer floor space and assumes the full trailer height above that footprint. CBM suits light, stackable freight; LDM suits non-stackable or full-height freight. The carrier bills the chargeable weight derived from whichever produces the higher figure.
How much is one loading meter in kilograms?
The standard conversion is 1 LDM = 1,850 kg on the European Continent, and 1 LDM = 2,000 kg in the UK, Ireland, and the Nordic countries. Individual carriers can set their own factor, so always confirm it in your rate agreement.
What is minimum LDM billing and why does it raise my costs?
Many carriers apply a minimum billable weight of 1,850 kg per loading meter regardless of your shipment's actual weight. A light pallet that occupies 0.4 LDM can therefore be billed as 740 kg even if it weighs far less, because the carrier is selling space, not weight.
Does marking freight non-stackable cost more?
Yes. A non-stackable flag tells the carrier to reserve the full trailer height above your pallet's footprint, so no other freight can sit on top. The pallet is then billed on its full LDM column. Only mark goods non-stackable when they genuinely cannot bear stacking.
