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20 GP, 40 GP and 40 HC: container sizes and volumes

Compare the volume, height and maximum payload of dry containers and perform a preliminary load check.

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20 GP · 40 GP · 40 HC

Key capacity indicators

Container Nominal length External height Published volume Published maximum payload
20′ GP 20′ 8′6″ 33.2 m³ 28 300 kg
40′ GP 40′ 8′6″ 67.7 m³ 28 870 kg
40′ HC 40′ 9′6″ 76.4 m³ 28 690 kg

Preliminary cargo check

If the total volume and gross weight of the cargo are known, check which containers fall within the theoretical limits based on these two indicators alone.

m³
kg
Source

Data Source and Limitations

Volume and maximum payload are based on Maersk published examples of dry containers. Rates vary by series, manufacturer, carrier and local weight restrictions. The determining factors are the CSC plate of the specific container and the carrier’s confirmation.

Maersk: types and sizes of containers
Important note

Don't choose a container based only on cubic meters

  • Check the external dimensions of the largest space and the ability to fit through the doorway.
  • Confirm floor load, center of gravity and mounting pattern.
  • Due to pallet clearances and loading methods, the nominal capacity may not be fully utilized.
  • For dangerous, high-temperature and oversized cargo, select special equipment.
FAQ

Questions about container capacity

How is 40 HC different from 40 GP?

The nominal length is the same, but the 40 HC is about one foot taller and provides more cubic volume.

Is it always possible to use the maximum payload?

No. Road, terminal, national restrictions, equipment and weight distribution may reduce the practical limit.

If the volume is suitable, will the cargo definitely fit?

No. Separately, the dimensions of the spaces, the doorway, the layout of the pallets and the safe fastening are checked.

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Need an accurate plan for your shipment?

Send the prepared cargo data to our team for a checked route plan and commercial proposal.

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Prepare a container enquiry with usable cargo details

A container capacity estimate is a starting point for a freight enquiry, not a loading guarantee. External package dimensions, gross weight, stackability and access at both ends affect the transport plan. Use the same units when comparing freight quotes.

Measure the shipping unit, not only the product

Record the outside length, width and height of each packed unit. Include pallets and protective packaging. If package sizes differ, prepare a separate line for each size rather than multiplying one average dimension by the total quantity. Label dimensions with their unit so centimetres and metres are not confused.

Separate volume from loading feasibility

The simple volume calculation below does not account for door clearance, weight distribution, gaps or stacking restrictions. A package can fit within the nominal volume and still be unsuitable for a proposed loading arrangement. Confirm lifting needs, orientation and whether other cargo can be placed above it.

Compare quotes with the same scope

State pickup and delivery locations, readiness dates, cargo description and required transport stages. Clarify which handling, documentation and destination charges are included. Do not compare a port-to-port figure with a door-to-door quote as though they cover the same service. Ask for the final loading and service scope to be confirmed.

Check each stage
StageWhat to checkUseful outcome
PackingOutside dimensions and package countA clear packing list
WeightGross weight including packagingA usable cargo weight
HandlingStackability and lifting restrictionsA loading constraint list
QuoteLocations, dates and service stagesComparable freight scope

Calculate simple packed volume

Planning example only. It does not confirm container fit, chargeable weight or a freight price. Inputs are not sent to a server by this tool.

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