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Exploring Essential Types of Shipping Containers

Discover the various designs and uses of shipping containers for global trade, and learn how they optimize logistics and reduce transport costs.

Ian Kaneshiro

Ian Kaneshiro

April 29, 2025

Types of Shipping Containers: Designs and Uses

Shipping containers are the backbone of global trade, facilitating the movement of goods across continents with remarkable efficiency. These standardized metal boxes have revolutionized how cargo is transported, handled, and stored throughout the international supply chain. Understanding the various types of shipping containers and their specific applications can help businesses optimize their logistics operations and reduce transportation costs.

Standard Containers

Standard shipping containers represent the workhorses of the global logistics industry, accounting for approximately 90% of the world's container fleet according to the World Shipping Council. These containers have transformed international trade by enabling intermodal transportation—seamlessly transferring cargo between ships, trains, and trucks without handling the goods themselves.

Dry Storage Container (General Purpose)

The dry storage container is the most common container type in global shipping, characterized by its versatility and robust construction. These containers are designed to transport dry, non-perishable cargo ranging from manufactured goods and electronics to textiles and machinery.

Typically constructed from corrugated steel, dry storage containers offer excellent protection against the elements while maintaining structural integrity during long oceanic journeys. According to the International Organization for Standardization (ISO), these containers adhere to strict dimensional standards, with the most common sizes being:

  • 20-foot containers: External dimensions of 20' length × 8' width × 8'6" height, with a cargo capacity of approximately 33 cubic meters and a maximum payload of about 28 tons

  • 40-foot containers: External dimensions of 40' length × 8' width × 8'6" height, with a cargo capacity of approximately 67 cubic meters

The standardization of these dimensions has been crucial for efficient stacking on container ships and streamlined handling at ports worldwide. Their uniform size allows shipping lines to maximize vessel capacity and terminal operators to optimize storage space.

High Cube Container

High cube containers represent an evolution of the standard dry container, offering additional vertical space for cargo that requires extra height clearance. While maintaining the same length and width dimensions as standard containers, high cube variants provide an additional foot of interior height.

The standard dimensions of a high cube container are:

  • 40-foot high cube: 40' length × 8' width × 9'6" height, offering approximately 76 cubic meters of cargo space

  • 20-foot high cube: 20' length × 8' width × 9'6" height, though less common than the 40-foot variant

According to data from Container xChange, high cube containers represent an increasingly significant portion of the global container fleet, with approximately 50% of all 40-foot containers now being high cube variants. This trend reflects growing demand for volumetric shipping capacity, particularly for low-density, high-volume cargo such as consumer electronics, automotive parts, and furniture.

The additional height makes these containers particularly valuable for manufacturers and retailers shipping bulky, lightweight goods where cubic volume rather than weight is the limiting factor.

Temperature-Controlled Containers

Temperature-controlled containers address the specialized requirements of cargo that must maintain specific environmental conditions throughout transit. These containers play a crucial role in global food supply chains and pharmaceutical distribution networks.

Refrigerated Container (Reefer)

Refrigerated containers, commonly known as "reefers," are specialized shipping units equipped with integrated cooling systems designed to maintain precise temperature control during transit. According to the United Nations Conference on Trade and Development (UNCTAD), the global reefer container fleet reached approximately 3.4 million TEU (Twenty-foot Equivalent Units) by 2021, representing about 7% of the total global container fleet.

Modern reefer containers can maintain temperatures ranging from -30°C to +30°C (-22°F to +86°F), allowing for the transportation of various temperature-sensitive products including:

  • Fresh produce (fruits, vegetables, flowers)

  • Frozen foods (meat, seafood, prepared meals)

  • Dairy products

  • Pharmaceuticals and vaccines

  • Chemicals requiring temperature stability

Reefer containers feature sophisticated monitoring systems that provide real-time data on internal conditions, alerting operators to any deviations from set parameters. This capability has become increasingly important for compliance with regulations such as the Food Safety Modernization Act (FSMA) in the United States, which requires comprehensive temperature documentation throughout the cold chain.

Most reefer containers require external power connections when stationed at ports or on vessels, though they can also operate on generator sets (gen-sets) during inland transportation. This power requirement adds complexity to reefer logistics and typically increases shipping costs compared to standard containers.

Insulated Container

Insulated containers offer temperature protection without active cooling systems, relying instead on high-quality insulation materials to maintain relatively stable internal environments. These containers serve as a middle-ground solution for cargo that requires protection from extreme temperature fluctuations but doesn't need the precise temperature control of refrigerated units.

Key characteristics of insulated containers include:

  • Thermal insulation in walls, ceiling, and floor

  • Reduced heat transfer between the container interior and external environment

  • Protection against condensation and humidity fluctuations

Insulated containers are typically used for products such as chocolate, wines, certain pharmaceuticals, and specialty chemicals that require protection from extreme temperatures but can tolerate gradual temperature changes within certain parameters.

According to industry data from the Container Owners Association, insulated containers represent a smaller segment of the specialized container market, with most shippers opting for either standard containers (for non-temperature-sensitive goods) or full refrigerated containers (for truly perishable items).

Importance of Shipping Containers in Cargo Transport

The introduction of standardized shipping containers in the 1950s fundamentally transformed global logistics, creating efficiencies that have dramatically reduced transportation costs and enabled the modern globalized economy. According to research published in the Journal of Transport Geography, containerization has reduced shipping costs by up to 90% compared to traditional break-bulk shipping methods.

Shipping containers have revolutionized international trade through several key mechanisms:

  1. Standardization: The universal adoption of standard container dimensions has enabled seamless intermodal transfers between ships, trains, and trucks, eliminating the need for multiple handling of individual cargo items.

  2. Security: Containers provide excellent protection against theft, damage, and environmental factors, reducing insurance costs and cargo claims.

  3. Efficiency: Container ships can now be loaded and unloaded in hours rather than days or weeks, dramatically reducing port congestion and vessel turnaround times.

  4. Scalability: The stackable nature of containers has enabled the development of increasingly large container vessels, with modern ships capable of carrying over 24,000 TEU, creating significant economies of scale.

  5. Data Integration: Modern containers increasingly feature IoT sensors and tracking technology, providing real-time visibility throughout the supply chain.

The World Bank estimates that approximately 90% of non-bulk cargo globally is now transported in shipping containers, highlighting their central role in international commerce. This widespread adoption has facilitated specialized container innovations beyond those discussed here, including open-top containers, flat racks, tank containers, and more – each designed to address specific cargo requirements.

As global trade continues to evolve, shipping containers remain the fundamental building blocks of efficient international logistics, enabling businesses to reach markets worldwide while maintaining product integrity throughout the journey.

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Try Your Next Shipment With Cubic - It's Free

It takes a minute, costs nothing, and can save you time, money, and headaches.

Try Your Next Shipment With Cubic - It's Free

It takes a minute, costs nothing, and can save you time, money, and headaches.

Try Your Next Shipment With Cubic - It's Free

It takes a minute, costs nothing, and can save you time, money, and headaches.

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Professional, transparent, and simple - it's the online freight forwarding solution you were looking for.

Subscribe to Our Newsletter!

Stay Informed with The Latest Supply Chain Insights - Subscribe to Our Newsletter!

Copyright © 2025 Cubic SCT Inc.
All Rights Reserved

Professional, transparent, and simple - it's the online freight forwarding solution you were looking for.

Subscribe to Our Newsletter!

Stay Informed with The Latest Supply Chain Insights - Subscribe to Our Newsletter!

Copyright © 2025 Cubic SCT Inc.
All Rights Reserved

Professional, transparent, and simple - it's the online freight forwarding solution you were looking for.

Subscribe to Our Newsletter!

Stay Informed with The Latest Supply Chain Insights - Subscribe to Our Newsletter!

Copyright © 2025 Cubic SCT Inc.
All Rights Reserved