Understanding TEU in Shipping
In a globalized world of logistics and international maritime shipping, the concept of TEU (Twenty-foot Equivalent Unit) is a fundamental measure that enables standardization, planning, and billing of goods transport flows. TEU is the universal “language” of container shipping – it serves to compare the capacity of ships, ports, trains and road transport, and is a key performance indicator for the entire industry.
What is TEU? Basic Definition and Purpose
TEU (Twenty-foot Equivalent Unit) is a standardized unit for expressing capacity in container shipping. One TEU corresponds to the volume and dimensions of a standard 20-foot (6.09 m) ISO container.
Why is TEU key?
- It allows comparing shipment volumes, capacity of ships, railway trains and port terminals regardless of the actual distribution of different container sizes.
- It simplifies planning, management and billing throughout the entire transport chain.
- It is a globally recognized indicator of port performance (turnover in TEU), ship capacity (capacity in TEU) and the entire container market.
History and Significance of TEU Standardization
Containerization brought a revolution to world cargo shipping in the 1950s. Previously, shipping was labor-intensive, time-consuming and inefficient. A fundamental change was brought by American entrepreneur Malcolm McLean, who was behind the first intermodal containers – transport boxes that could be easily moved between ship, train and truck without handling the cargo.
The problem of different sizes: Different companies used different container dimensions, which complicated handling in ports and transshipment points.
Solution: ISO Dimension Standardization
- In the 1960s, the International Organization for Standardization (ISO) established container dimensions, the most common being the 20-foot container.
- The TEU is based on its dimensions as a comparison unit.
- TEU enabled rapid expansion of container shipping and became the foundation for globalization of trade.
Technical Parameters of TEU Container (20′ dry van) – Table
| Parameter | Value |
|---|---|
| External Length | 6 058 mm (6.06 m / 20 feet) |
| External Width | 2 438 mm (2.44 m / 8 feet) |
| External Height | 2 591 mm (2.59 m / 8 feet 6 inches) |
| Internal Length | 5 898 mm (5.90 m) |
| Internal Width | 2 352 mm (2.35 m) |
| Internal Height | 2 393 mm (2.39 m) |
| Door Width | 2 340 mm (2.34 m) |
| Door Height | 2 280 mm (2.28 m) |
| Internal Volume | 33 – 33.2 m³ |
| Tare Weight (empty container) | 2 200–2 300 kg |
| Max. Useful Load (payload) | 28 200 kg |
| Max. Gross Weight | 30 480 kg |
| Max. Number of Euro Pallets (120×80 cm) | 11 pcs (with alternating arrangement) |
| Typical Use | Dry goods, consumer goods, machinery, raw materials |
Note: Dimensions may vary slightly depending on the manufacturer or specific series. Always verify the specification of the specific unit.
Other Variants of 20-foot Containers
| Type | External Dimensions (L x W x H) | Internal Volume | Max. Useful Load | Specifics |
|---|---|---|---|---|
| 20′ Open Top | 5.90 x 2.34 x 2.35 m | 32 m³ | 28.2 t | Removable roof for top loading |
| 20′ Flat Rack | 5.97 x 2.36 x 2.24 m | – | 27.15 t | Collapsible/fixed ends, for heavy/bulky goods |
| 20′ Reefer | 5.45 x 2.29 x 2.25 m | 28 m³ | 27.49 t | Refrigerated, for temperature-sensitive goods |
| 20′ Tank | approx. 6.06 x 2.44 x 2.59 m | 21–26 m³ | depending on type | Liquids, gases, chemicals |
TEU Calculation in Practice
Conversion Key
- 1 × 20-foot container = 1 TEU
- 1 × 40-foot container = 2 TEU
- 45-foot container = 2.25 TEU
- 10-foot container = 0.5 TEU
FEU (Forty-foot Equivalent Unit) – abbreviation for forty-foot equivalent unit, 1 FEU = 2 TEU. In practice, it is often used for shipping prices and planning.
Example of Ship or Shipment Capacity Calculation:
| Container Type | Number of Units | Conversion to TEU | Total TEU |
|---|---|---|---|
| 20′ dry container | 50 | 1 | 50 |
| 40′ dry container | 100 | 2 | 200 |
| Total | 250 |
Comparison of Container Types and Variants – Table
| Container Type | Length (m) | Width (m) | Height (m) | Volume (m³) | Max. Load (t) | TEU Equivalent | Typical Use |
|---|---|---|---|---|---|---|---|
| 20′ dry van | 6.06 | 2.44 | 2.59 | 33 | 28.2 | 1 | General goods, raw materials |
| 40′ dry van | 12.19 | 2.44 | 2.59 | 67 | 28.8 | 2 | Larger volumes, lighter goods |
| 20′ high cube | 6.06 | 2.44 | 2.89 | 37 | 28.2 | 1 | Light/bulky cargo |
| 40′ high cube | 12.19 | 2.44 | 2.89 | 76 | 28.8 | 2 | Light/bulky cargo |
| 20′ open top | 6.06 | 2.44 | 2.59 | 32 | 28.2 | 1 | Non-standard, top-loaded |
| 20′ flat rack | 6.06 | 2.44 | 2.24 | – | 27.15 | 1 | Heavy, oversized goods |
| 20′ reefer | 6.06 | 2.44 | 2.59 | 28 | 27.49 | 1 | Chilled/frozen shipments |
TEU in Logistics and Economics
Where is TEU Used?
- Container Ships: Capacity is stated in TEU (e.g., ULCV = Ultra Large Container Vessel, >20 000 TEU).
- Ports: Performance and turnover in TEU per year (e.g., Shanghai >47 million TEU/year).
- Railways, Roads: Logistics, planning of train sets, terminals and cargo vehicles.
- Pricing: Maritime tariff for shipping (e.g., USD/TEU).
Significance and Benefits of TEU Standardization
- Comparability: Allows comparing capacity and performance across different types of transport and regions.
- Efficiency: Simplifies planning, billing and documentation.
- Indicator of World Trade: The development of TEU volumes is a barometer of the economy (growth/decline in TEU = growth/decline in global demand).
TEU in Numbers – Records and Trends
- Largest Container Ship (2024): Capacity over 24 000 TEU (e.g., MSC Irina).
- World’s Largest Ports: Shanghai, Singapore, Ningbo-Zhoushan (all over 30 million TEU/year).
- European Ports: Rotterdam, Antwerp, Hamburg (5–15 million TEU/year).
TEU in Practice: FCL, LCL and Customs Clearance
Types of Shipments
- FCL (Full Container Load): Entire container for one customer. Billed per TEU or FEU.
- LCL (Less than Container Load): Partial shipments sharing container space, billing according to share of volume/weight.
TEU and Customs Processes
- Standardization of containers (and TEU) accelerates customs clearance – clear identification, uniform documentation, faster inspection.
- Manifests clearly describe the contents of each TEU, which increases security and transparency.
Related Logistics and Technical Terms
| Term | Meaning |
|---|---|
| FEU | Forty-foot Equivalent Unit, 1 FEU = 2 TEU |
| ISO Container | Container complying with ISO 668 standards |
| High Cube | Container 1 foot higher than standard (height 2.89 m) |
| Reefer | Refrigerated container with built-in cooling unit |
| Flat Rack | Container with open sides and collapsible ends for heavy/oversized goods |
| Open Top | Top-open container for non-standard and difficult-to-handle shipments |
| Payload | Useful load – maximum weight of cargo in container |
| Tare Weight | Weight of empty container |
| Gross Weight | Total (gross) weight of container including cargo |
| Intermodal Transport | Transport of goods in one transport unit using multiple modes of transport (ship, train, road) |
Frequently Asked Questions (FAQ) on TEU
How many euro pallets fit in one TEU?
- Usually 11 pcs (120 x 80 cm), with alternating arrangement.
What is the maximum useful load in TEU?
- Typically 28 200 kg (varies depending on manufacturer and container type).
Are all 20-foot containers TEU the same?
- Dimensions are standardized according to ISO, but shipping container internal dimensions and weights may vary slightly depending on manufacturer and type (dry, open top, flat rack, reefer).
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