LOGSELECT
Guide

Container and ULD dimensions at a glance

Whether your goods fit into a container or onto an air cargo pallet decides price and routing. Here are the common dimensions for ocean and air freight.

Updated: November 2026Reading time: 5 min
Air cargo pallets with nets in a warehouse
LogselectAir cargo pallets in the warehouse
In short

A 20′ container holds about 33 m³, a 40′ about 67 m³ and a 40′ high cube about 76 m³. In air freight the standard PMC pallet measures 318 × 244 cm. The permitted height depends on the aircraft and the deck.

Ocean containers

TypeInternal L × W × HDoor W × HVolumeMax. payload
20′ standard5.90 × 2.35 × 2.39 m2.34 × 2.28 mapprox. 33 m³approx. 28,000 kg
40′ standard12.03 × 2.35 × 2.39 m2.34 × 2.28 mapprox. 67 m³approx. 26,500 kg
40′ high cube12.03 × 2.35 × 2.69 m2.34 × 2.58 mapprox. 76 m³approx. 26,500 kg
20′ reefer5.44 × 2.29 × 2.27 m2.29 × 2.26 mapprox. 28 m³approx. 27,000 kg
40′ reefer high cube11.58 × 2.29 × 2.50 m2.29 × 2.57 mapprox. 67 m³approx. 29,000 kg

Typical values. Dimensions and payload vary slightly by manufacturer and shipping line, and road transport adds its own weight limits.

A 20′ container takes 11 Euro pallets (120 × 80 cm) in one layer, a 40′ container 24 to 25. Plan for about 85 % volume utilisation, because packages rarely stand without gaps. For cargo that does not fit standard containers there are open top and flat rack units; more at OOGsea.

Air cargo ULDs

In air freight, goods are loaded onto pallets or into containers known as unit load devices (ULD). The base is standardised; the permitted height depends on the aircraft contour.

ULDBaseTypical heightUse
PMC (P6P)318 × 244 cm163 cm lower deck, up to 300 cm main deckStandard pallet, widebody and freighter
PAG (P1P)318 × 224 cm163 cm lower deck, up to 300 cm main deckPallet, widebody and freighter
PLA318 × 153 cm163 cmHalf-size pallet, lower deck
AKE (LD3)156 × 153 cm163 cm, approx. 4.3 m³, max. 1,588 kgLower-deck container

Maximum height and weight depend on aircraft type, deck and position. On the main deck of freighters, contours up to 244 cm or up to 300 cm in height are common.

What this means for your price

In air freight the higher of actual and volumetric weight is charged, using a factor of 1:6000 (1 m³ equals 167 kg). In LCL ocean freight 1 m³ = 1,000 kg applies, with a minimum of 1 m³. Our weight calculator works this out for several package sizes at once.

Will your goods fit?

Send us dimensions and weights. We plan the container or ULD and send you a quote.

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