NS Continent | International Freight Forwarding & Logistics
NS CONTINENT Synchronize the World of LogisticsShipping Container Types, Dimensions & Cargo Suitability
Choosing the right container depends on the cargo, dimensions, weight, temperature requirements, loading method and transportation route. NS Continent's container guide explains common international shipping container types, representative dimensions, capacity, equipment characteristics and the cargo situations for which each container may be suitable.
What Is a Shipping Container?
Understand the fundamentals of standardized container equipment before selecting the right type for your cargo.
A shipping container is a standardized cargo transport unit designed to allow goods to move between different transportation modes with minimal handling of the cargo itself. Standardized container dimensions and corner fittings allow containers to move between ships, trucks, rail systems and cargo-handling equipment.
Not every container is designed for the same cargo. A dry container is suitable for many general cargo shipments, while reefer, open top, flat rack, tank, hardtop and other specialized equipment are intended for different cargo characteristics.
Dry / General Purpose
Common equipment for cartons, pallets, machinery and general manufactured cargo.
Temperature Controlled
Reefer equipment for cargo requiring controlled temperature conditions.
Specialized Equipment
Open top, flat rack, tank, hardtop, platform, ventilated and other specialized equipment.
Container Sizes at a Glance
Representative dimensions and capacities for common equipment.
The following figures are representative examples for planning. Actual dimensions and weight limits vary by equipment manufacturer, fleet, carrier and individual container.
| Container | Nominal External Size | Approx. Capacity | Typical Use |
|---|---|---|---|
| 20GP | 20' × 8' × 8'6" | ≈ 33.2 CBM | General cargo |
| 40GP | 40' × 8' × 8'6" | ≈ 67.7 CBM | General cargo |
| 40HC | 40' × 8' × 9'6" | ≈ 76.3–76.4 CBM | Higher-volume / taller cargo |
| 45HC | 45' × 8' × 9'6" | ≈ 86 CBM | Higher-volume cargo |
| 20 Reefer | 20' × 8' × 8'6" | ≈ 28 CBM | Temperature-controlled cargo |
| 40HC Reefer | 40' × 8' × 9'6" | ≈ 67–68 CBM | Larger temperature-controlled cargo |
Dry Containers / General Purpose Containers
Standard equipment for many international containerized shipments.
20' Standard Dry Container
A common general-purpose container for cargo where the volume or physical footprint does not require a larger container.
40' Standard Dry Container
A longer dry container providing significantly more floor length and volume than a 20FT standard container.
40' High Cube Dry Container
A 40FT container with greater internal height, useful for relatively voluminous cargo or cargo that benefits from additional vertical space.
45' High Cube Dry Container
A higher-volume high-cube option where the specific trade lane, terminal, inland route and receiving facility can accommodate 45FT equipment.
Representative carrier examples commonly list approximately 33.2 CBM for a 20' standard, 67.7 CBM for a 40' standard, 76.3 CBM for a 40' standard high cube and 86.0 CBM for a 45' standard high cube.
Refrigerated Containers — Reefer
Temperature-controlled equipment for selected cargo requirements.
Reefer containers are refrigerated equipment designed for cargo requiring controlled temperature conditions during transportation. Compared with standard dry containers, reefer equipment has less internal cargo space because the refrigeration system occupies part of the container.
20' Reefer
A smaller refrigerated container for temperature-sensitive cargo where a 20FT equipment footprint is suitable.
- Representative capacity: approximately 28.1–28.3 CBM.
- Suitable for selected temperature-sensitive cargo.
- Actual temperature requirements depend on the commodity and transport plan.
40HC Reefer
A larger high-cube refrigerated container for higher-volume temperature-controlled cargo.
- Representative capacity: approximately 67.5–67.7 CBM.
- Additional height compared with standard reefer equipment.
- Actual equipment availability varies by carrier and trade lane.
Open Top Containers
Specialized equipment where top-loading access is important.
Open Top containers are useful for cargo that is difficult to load through standard container doors or cargo that benefits from top loading. They generally use a removable roof arrangement rather than a conventional fixed roof.
20' Open Top
Useful where top access or crane loading is required and cargo can otherwise fit within the equipment's loading structure.
20' Open Top High Cube
Provides additional vertical space compared with standard-height open-top equipment.
40' Open Top
Useful for longer machinery or cargo requiring top-loading access.
40' Open Top High Cube
High-cube open-top equipment for taller or higher-volume cargo where the equipment is available.
Carrier equipment classifications can include 20' Open Top, 40' Open Top and 40' High Cube Open Top equipment.
Flat Rack Containers
Specialized open equipment for heavy, oversized and project cargo.
Flat Rack containers are specialized equipment with open loading areas and fixed or collapsible end structures. They are commonly considered for oversized or heavy cargo that cannot fit inside a standard dry container.
20' Flat Rack
A 20FT specialized platform-style container for heavy or out-of-gauge cargo where the equipment and cargo securing plan are appropriate.
40' Flat Rack
A longer flat-rack option for larger machinery, industrial equipment and project cargo.
40' High Flat Rack
Higher flat-rack equipment intended for certain larger or taller project-cargo configurations where available.
Collapsible Flat Rack
A flat-rack design whose end structures can be folded according to the equipment configuration, improving empty-equipment handling and storage.
Hardtop Containers
Specialized equipment providing top-access characteristics with a rigid roof arrangement.
Hardtop containers use a removable or specially designed hard roof arrangement that can provide easier top access than a conventional dry container while retaining a more rigid equipment structure.
20' Hardtop
Useful where top access is important and cargo can be accommodated inside the equipment envelope.
40' Hardtop
Provides additional length for larger or longer cargo.
40' High Cube Hardtop
Higher equipment offering additional vertical space with hardtop access characteristics.
Carrier equipment classifications can include 20', 40' and 40' High Cube Hardtop equipment.
Tank Containers / ISO Tanks
Standardized tank equipment for compatible liquid and bulk products.
Tank containers are standardized transport frames fitted with a tank designed for liquid, powder or other compatible bulk cargoes depending on the specific tank configuration and product requirements.
20' ISO Tank
A common ISO tank frame size for compatible liquid or bulk products. Actual working capacity varies according to tank design.
Specialized Tank Configurations
Tank equipment can vary according to dangerous-goods requirements, pressure specifications, product compatibility, food-grade requirements and other engineering characteristics.
Ventilated, Bulk & Platform Containers
Additional equipment categories for cargo with specific physical or operational requirements.
Ventilated Containers
Ventilated containers allow designed airflow and can be considered for selected cargo where ventilation is important.
Bulk Containers
Specialized equipment for compatible bulk commodities that can be loaded and discharged according to the container's intended design.
Platform Containers
Open-base equipment for certain heavy, oversized and project-cargo applications.
Complete Container Type Guide
A consolidated reference for common and specialized container equipment.
| Container Type | Representative Size | Approx. Capacity / Characteristic | Typical Cargo Suitability |
|---|---|---|---|
| 20GP | 20' × 8' × 8'6" | ≈ 33 CBM | General cargo |
| 40GP | 40' × 8' × 8'6" | ≈ 67–68 CBM | General cargo |
| 40HC | 40' × 8' × 9'6" | ≈ 76 CBM | High-volume / taller cargo |
| 45HC | 45' × 8' × 9'6" | ≈ 86 CBM | Higher-volume cargo where available |
| 20 Reefer | 20' reefer footprint | ≈ 28 CBM | Temperature-controlled cargo |
| 40HC Reefer | 40' × 8' × 9'6" | ≈ 67 CBM | Larger temperature-controlled cargo |
| 20 Open Top | 20' | Top-loading access | Machinery / cargo requiring top access |
| 20 OT High Cube | 20' high-cube class | Example ≈ 36.8 CBM | Taller / top-loading cargo |
| 40 Open Top | 40' | Top-loading access | Longer machinery / industrial cargo |
| 40 OT High Cube | 40' × 9'6" class | High-cube open-top equipment | Taller top-loading cargo |
| 20 Flat Rack | 20' | Open platform structure | Heavy / oversized cargo |
| 40 Flat Rack | 40' | Open platform structure | Heavy / project cargo |
| 40 High Flat Rack | 40' high class | Specialized OOG equipment | Higher / oversized cargo |
| Hardtop | 20' / 40' / 40HC | Top access with hard roof arrangement | Special access cargo |
| ISO Tank | Typically 20' frame | Tank-specific capacity | Compatible liquids / bulk |
| Ventilated | Commonly 20' class | Ventilation-focused | Ventilation-sensitive cargo |
| Bulk | Equipment-dependent | Bulk-cargo design | Compatible bulk commodities |
| Platform | 20' / 40' | Open platform | Heavy / project cargo |
External vs Internal Container Dimensions
Nominal external dimensions are not the same as usable internal cargo space.
The nominal external dimensions describe the overall equipment envelope. They are not the same as the usable internal cargo space.
Example — 20GP Internal Space
A representative current carrier example gives internal dimensions of approximately 5,900 × 2,352 × 2,395 mm, with a door opening of approximately 2,340 × 2,292 mm.
Why Door Dimensions Matter
A carton or machine may fit mathematically within the internal container length while still being unable to pass through the door opening or be loaded using the required handling method.
These differences are why container planning should use actual cargo dimensions rather than only the nominal "20FT" or "40FT" label.
CBM Capacity Does Not Mean Full Usable Capacity
Nominal internal volume is a planning reference, not a guarantee of actual cargo utilization.
A container may have approximately 33 CBM, 67 CBM or 76 CBM of nominal internal capacity, but this does not mean cargo will always load efficiently to that exact volume.
Package Shape
Irregular package geometry can leave unusable voids inside the container.
Door Clearance
Cargo must physically pass through the available door opening when conventional door loading is used.
Stacking
Cargo that cannot safely stack may use more floor area and reduce effective volume utilization.
Container Gross Weight, Tare & Payload
Weight planning must consider both equipment limitations and inland transportation conditions.
Maximum Gross Weight
The maximum combined mass of the container and cargo permitted by the applicable equipment specification and operational requirements.
Tare Weight
The empty container's own weight.
Payload
The cargo weight that can be carried based on the equipment's permissible gross weight and tare weight.
Road / Route Restrictions
The permissible road-delivery weight can be more restrictive than the container's maximum gross figure depending on country, route, vehicle and local regulations.
Which Container Is Right for Your Cargo?
Use cargo characteristics as the first filter, then validate the specific equipment against route and carrier requirements.
This flow is only a starting point. Actual equipment should be confirmed against the cargo's dimensions, weight, packaging, loading method, route, carrier availability and applicable requirements.
Container Selection by Cargo Type
Match the cargo characteristics with the equipment's physical and operational capabilities.
| Cargo | Potential Equipment | Main Consideration |
|---|---|---|
| Cartons / General Goods | 20GP / 40GP / 40HC | Volume, dimensions and weight |
| High-Volume Light Cargo | 40HC / 45HC where available | Volume utilization and route availability |
| Temperature-Sensitive Cargo | 20 Reefer / 40HC Reefer | Temperature and cargo handling requirements |
| Machinery Requiring Top Loading | Open Top / Hardtop | Lifting access and cargo dimensions |
| Oversized Machinery | Flat Rack / Platform | Height, width, securing and OOG acceptance |
| Heavy Project Cargo | Flat Rack / Platform | Weight distribution and lashing |
| Liquid Bulk | ISO Tank | Product compatibility and tank specification |
| Ventilation-Sensitive Cargo | Ventilated equipment where available | Airflow requirements |
| Compatible Bulk Products | Bulk container | Commodity and equipment compatibility |
Choosing Containers for Dangerous Goods
Dangerous-goods equipment selection depends on the commodity, packing method and transport requirements.
Dangerous goods do not automatically require one particular container type. The appropriate equipment depends on the physical form and classification of the cargo, packing method, transport mode, carrier requirements and applicable regulations.
Dry DG
Certain packaged dangerous goods may move in suitable general-purpose equipment when all applicable requirements are met.
Temperature-Sensitive DG
Certain dangerous goods may require temperature control depending on the product and transport instructions.
Liquid DG
Compatible tank equipment may be required for certain liquid dangerous goods.
Oversized Hazardous Cargo
May require specialized equipment, securing arrangements, carrier review and additional operational planning.
Dry Container vs Reefer
The primary distinction is active temperature-control capability and the associated internal-space trade-off.
| Consideration | Dry Container | Reefer |
|---|---|---|
| Temperature control | No active temperature control | Refrigeration capability |
| Main cargo | General goods | Temperature-sensitive cargo |
| Usable internal space | Generally larger for the same nominal size | Reduced due to refrigeration equipment |
| Main planning concern | Fit, weight and loading arrangement | Cargo + temperature + handling requirements |
Representative carrier specifications illustrate that a 20' reefer has less internal capacity than a 20' standard dry container, for example approximately 28.1 CBM versus 33.2 CBM in one published equipment example.
Open Top vs Flat Rack
The distinction is primarily about how the cargo needs to be loaded and whether an enclosed equipment envelope is still practical.
Open Top
Best considered when cargo requires top-loading access but can otherwise be accommodated within the basic container structure and loading envelope.
- Top loading
- Crane access
- Heavy or tall cargo within permissible dimensions
Flat Rack
Best considered when the cargo cannot be accommodated inside an enclosed container and requires an open platform arrangement.
- Oversized cargo
- Heavy machinery
- Project cargo
- Special securing arrangements
The final choice depends on actual cargo dimensions, center of gravity, lifting method, securing points, route and carrier acceptance.
Container Loading & Cargo Planning
Physical loading planning determines how efficiently cargo can actually use the available equipment.
Selecting the right container is only the first step. The cargo also needs to be physically planned inside the equipment.
Package Dimensions
Actual length, width and height determine how the cargo can be arranged.
CBM
Cargo volume helps compare available container capacity and identify the approximate space requirement.
Stacking
Stackability and package strength influence vertical utilization.
Weight Distribution
Cargo weight should be distributed appropriately within the container.
Door Clearance
Cargo must physically pass through the applicable loading opening.
Securing
Cargo may require dunnage, blocking, bracing, lashing or other securing arrangements.
The practical container-loading process therefore combines dimensions, weight, packaging, stacking, securing and route requirements rather than relying only on theoretical CBM.
Container Selection and FCL vs LCL
Container planning interacts with the broader choice between dedicated and consolidated cargo.
FCL — Full Container Load
A dedicated container is used for the shipment. Equipment selection becomes directly linked to cargo volume, physical fit, weight and loading requirements.
LCL — Less than Container Load
Cargo shares container capacity with other shipments. CBM, package dimensions, handling requirements and consolidation conditions become important planning factors.
Container Transportation by Truck
The container must remain practical not only for ocean transport, but also for inland movement.
Selecting a container is not only a vessel or port decision. The container also needs to move by road. Container dimensions and gross weight can therefore affect trailer selection, road restrictions, route planning and final delivery.
The reverse movement applies to import cargo, where a container may move from the port after customs release to the consignee, warehouse or factory.
Containers, Warehousing & Cargo Handling
Container logistics often connects directly with warehousing, stuffing, stripping and distribution.
Containers may move to or from warehouses for stuffing, stripping, consolidation, deconsolidation, storage, cargo handling or distribution.
Container Shipping & Customs Clearance
Container selection does not replace proper customs classification and import/export compliance.
Container selection does not remove customs requirements. Cargo description, HS classification, customs value, origin, packing details and applicable restrictions remain relevant to the customs process.
Customs Clearance
Connect containerized cargo with the customs and import process.
Explore Customs →Import Tax Calculator
Estimate duty and import-tax components for Indonesia planning.
Open Import Tax →Ocean Freight
Coordinate the international container transportation process.
Explore Ocean Freight →Container Shipping from Indonesia
Container planning in Indonesia needs to connect the cargo origin, port, inland route and shipment requirements.
For shipments originating in Indonesia, container selection should be considered together with the factory or warehouse location, port, cargo readiness, trucking route, customs requirements, carrier availability, destination and receiving facility.
Jakarta / Tanjung Priok
Major container logistics gateway for cargo moving through the Jakarta region.
Surabaya & Semarang
Important logistics locations serving manufacturing, export and domestic distribution requirements.
Other Indonesian Gateways
Panjang, Belawan, Batam, Banjarmasin, Balikpapan and Makassar may form part of container logistics planning according to the route.
Container availability and equipment type are trade-lane and carrier dependent. The correct container should therefore be confirmed against the actual booking and cargo requirements.
Smart Tools for Container Planning
Use practical tools to estimate cargo volume, visualize loading and review supporting logistics information.
3D Load Planner
Visualize cargo placement and container utilization before stuffing.
Open 3D Load Planner →Unit Converter
Convert common logistics dimensions and weight measurements.
Explore Logistics Tools →Cargo Guide
Understand how cargo characteristics can influence handling and equipment selection.
Explore Cargo Guide →Common Container Selection & Loading Mistakes
Common planning mistakes can create problems during loading, trucking or transport.
Choosing Only by CBM
Cargo may fit theoretically by volume but fail physically because of package dimensions or loading restrictions.
Ignoring Door Opening
Internal container space is not the same as the usable loading opening.
Ignoring Weight Distribution
Cargo weight must be considered together with location and securing arrangement.
Overestimating Usable Capacity
Package shape and voids can significantly reduce practical utilization.
Ignoring Special Cargo Requirements
DG, reefer, oversized and project cargo require additional equipment planning.
Ignoring Road Transportation
The container may be acceptable for ocean transportation while still creating inland weight or route constraints.
Assuming 45HC Is Universally Available
45FT equipment depends on carrier, trade lane, terminal and receiving capability.
Using Outdated Container Specifications
Equipment specifications change by fleet and manufacturer, so actual booking specifications should be confirmed.
Container FAQ
Common questions about container types, capacity, dimensions and equipment selection.
Not Sure Which Container Your Cargo Needs?
Send us your cargo description, number of packages, dimensions, gross weight, CBM, loading method, origin and destination. NS Continent can help assess the appropriate container and logistics arrangement for your shipment.
Shipping Container Types, Dimensions & Cargo Suitability
Choosing the right container depends on the cargo, dimensions, weight, temperature requirements, loading method and transportation route. NS Continent's container guide explains common international shipping container types, representative dimensions, capacity, equipment characteristics and the cargo situations for which each container may be suitable.
What Is a Shipping Container?
Understand the fundamentals of standardized container equipment before selecting the right type for your cargo.
A shipping container is a standardized cargo transport unit designed to allow goods to move between different transportation modes with minimal handling of the cargo itself. Standardized container dimensions and corner fittings allow containers to move between ships, trucks, rail systems and cargo-handling equipment.
Not every container is designed for the same cargo. A dry container is suitable for many general cargo shipments, while reefer, open top, flat rack, tank, hardtop and other specialized equipment are intended for different cargo characteristics.
Dry / General Purpose
Common equipment for cartons, pallets, machinery and general manufactured cargo.
Temperature Controlled
Reefer equipment for cargo requiring controlled temperature conditions.
Specialized Equipment
Open top, flat rack, tank, hardtop, platform, ventilated and other specialized equipment.
Container Sizes at a Glance
Representative dimensions and capacities for common equipment.
The following figures are representative examples for planning. Actual dimensions and weight limits vary by equipment manufacturer, fleet, carrier and individual container.
| Container | Nominal External Size | Approx. Capacity | Typical Use |
|---|---|---|---|
| 20GP | 20' × 8' × 8'6" | ≈ 33.2 CBM | General cargo |
| 40GP | 40' × 8' × 8'6" | ≈ 67.7 CBM | General cargo |
| 40HC | 40' × 8' × 9'6" | ≈ 76.3–76.4 CBM | Higher-volume / taller cargo |
| 45HC | 45' × 8' × 9'6" | ≈ 86 CBM | Higher-volume cargo |
| 20 Reefer | 20' × 8' × 8'6" | ≈ 28 CBM | Temperature-controlled cargo |
| 40HC Reefer | 40' × 8' × 9'6" | ≈ 67–68 CBM | Larger temperature-controlled cargo |
Dry Containers / General Purpose Containers
Standard equipment for many international containerized shipments.
20' Standard Dry Container
A common general-purpose container for cargo where the volume or physical footprint does not require a larger container.
40' Standard Dry Container
A longer dry container providing significantly more floor length and volume than a 20FT standard container.
40' High Cube Dry Container
A 40FT container with greater internal height, useful for relatively voluminous cargo or cargo that benefits from additional vertical space.
45' High Cube Dry Container
A higher-volume high-cube option where the specific trade lane, terminal, inland route and receiving facility can accommodate 45FT equipment.
Representative carrier examples commonly list approximately 33.2 CBM for a 20' standard, 67.7 CBM for a 40' standard, 76.3 CBM for a 40' standard high cube and 86.0 CBM for a 45' standard high cube.
Refrigerated Containers — Reefer
Temperature-controlled equipment for selected cargo requirements.
Reefer containers are refrigerated equipment designed for cargo requiring controlled temperature conditions during transportation. Compared with standard dry containers, reefer equipment has less internal cargo space because the refrigeration system occupies part of the container.
20' Reefer
A smaller refrigerated container for temperature-sensitive cargo where a 20FT equipment footprint is suitable.
- Representative capacity: approximately 28.1–28.3 CBM.
- Suitable for selected temperature-sensitive cargo.
- Actual temperature requirements depend on the commodity and transport plan.
40HC Reefer
A larger high-cube refrigerated container for higher-volume temperature-controlled cargo.
- Representative capacity: approximately 67.5–67.7 CBM.
- Additional height compared with standard reefer equipment.
- Actual equipment availability varies by carrier and trade lane.
Open Top Containers
Specialized equipment where top-loading access is important.
Open Top containers are useful for cargo that is difficult to load through standard container doors or cargo that benefits from top loading. They generally use a removable roof arrangement rather than a conventional fixed roof.
20' Open Top
Useful where top access or crane loading is required and cargo can otherwise fit within the equipment's loading structure.
20' Open Top High Cube
Provides additional vertical space compared with standard-height open-top equipment.
40' Open Top
Useful for longer machinery or cargo requiring top-loading access.
40' Open Top High Cube
High-cube open-top equipment for taller or higher-volume cargo where the equipment is available.
Carrier equipment classifications can include 20' Open Top, 40' Open Top and 40' High Cube Open Top equipment.
Flat Rack Containers
Specialized open equipment for heavy, oversized and project cargo.
Flat Rack containers are specialized equipment with open loading areas and fixed or collapsible end structures. They are commonly considered for oversized or heavy cargo that cannot fit inside a standard dry container.
20' Flat Rack
A 20FT specialized platform-style container for heavy or out-of-gauge cargo where the equipment and cargo securing plan are appropriate.
40' Flat Rack
A longer flat-rack option for larger machinery, industrial equipment and project cargo.
40' High Flat Rack
Higher flat-rack equipment intended for certain larger or taller project-cargo configurations where available.
Collapsible Flat Rack
A flat-rack design whose end structures can be folded according to the equipment configuration, improving empty-equipment handling and storage.
Hardtop Containers
Specialized equipment providing top-access characteristics with a rigid roof arrangement.
Hardtop containers use a removable or specially designed hard roof arrangement that can provide easier top access than a conventional dry container while retaining a more rigid equipment structure.
20' Hardtop
Useful where top access is important and cargo can be accommodated inside the equipment envelope.
40' Hardtop
Provides additional length for larger or longer cargo.
40' High Cube Hardtop
Higher equipment offering additional vertical space with hardtop access characteristics.
Carrier equipment classifications can include 20', 40' and 40' High Cube Hardtop equipment.
Tank Containers / ISO Tanks
Standardized tank equipment for compatible liquid and bulk products.
Tank containers are standardized transport frames fitted with a tank designed for liquid, powder or other compatible bulk cargoes depending on the specific tank configuration and product requirements.
20' ISO Tank
A common ISO tank frame size for compatible liquid or bulk products. Actual working capacity varies according to tank design.
Specialized Tank Configurations
Tank equipment can vary according to dangerous-goods requirements, pressure specifications, product compatibility, food-grade requirements and other engineering characteristics.
Ventilated, Bulk & Platform Containers
Additional equipment categories for cargo with specific physical or operational requirements.
Ventilated Containers
Ventilated containers allow designed airflow and can be considered for selected cargo where ventilation is important.
Bulk Containers
Specialized equipment for compatible bulk commodities that can be loaded and discharged according to the container's intended design.
Platform Containers
Open-base equipment for certain heavy, oversized and project-cargo applications.
Complete Container Type Guide
A consolidated reference for common and specialized container equipment.
| Container Type | Representative Size | Approx. Capacity / Characteristic | Typical Cargo Suitability |
|---|---|---|---|
| 20GP | 20' × 8' × 8'6" | ≈ 33 CBM | General cargo |
| 40GP | 40' × 8' × 8'6" | ≈ 67–68 CBM | General cargo |
| 40HC | 40' × 8' × 9'6" | ≈ 76 CBM | High-volume / taller cargo |
| 45HC | 45' × 8' × 9'6" | ≈ 86 CBM | Higher-volume cargo where available |
| 20 Reefer | 20' reefer footprint | ≈ 28 CBM | Temperature-controlled cargo |
| 40HC Reefer | 40' × 8' × 9'6" | ≈ 67 CBM | Larger temperature-controlled cargo |
| 20 Open Top | 20' | Top-loading access | Machinery / cargo requiring top access |
| 20 OT High Cube | 20' high-cube class | Example ≈ 36.8 CBM | Taller / top-loading cargo |
| 40 Open Top | 40' | Top-loading access | Longer machinery / industrial cargo |
| 40 OT High Cube | 40' × 9'6" class | High-cube open-top equipment | Taller top-loading cargo |
| 20 Flat Rack | 20' | Open platform structure | Heavy / oversized cargo |
| 40 Flat Rack | 40' | Open platform structure | Heavy / project cargo |
| 40 High Flat Rack | 40' high class | Specialized OOG equipment | Higher / oversized cargo |
| Hardtop | 20' / 40' / 40HC | Top access with hard roof arrangement | Special access cargo |
| ISO Tank | Typically 20' frame | Tank-specific capacity | Compatible liquids / bulk |
| Ventilated | Commonly 20' class | Ventilation-focused | Ventilation-sensitive cargo |
| Bulk | Equipment-dependent | Bulk-cargo design | Compatible bulk commodities |
| Platform | 20' / 40' | Open platform | Heavy / project cargo |
External vs Internal Container Dimensions
Nominal external dimensions are not the same as usable internal cargo space.
The nominal external dimensions describe the overall equipment envelope. They are not the same as the usable internal cargo space.
Example — 20GP Internal Space
A representative current carrier example gives internal dimensions of approximately 5,900 × 2,352 × 2,395 mm, with a door opening of approximately 2,340 × 2,292 mm.
Why Door Dimensions Matter
A carton or machine may fit mathematically within the internal container length while still being unable to pass through the door opening or be loaded using the required handling method.
These differences are why container planning should use actual cargo dimensions rather than only the nominal "20FT" or "40FT" label.
CBM Capacity Does Not Mean Full Usable Capacity
Nominal internal volume is a planning reference, not a guarantee of actual cargo utilization.
A container may have approximately 33 CBM, 67 CBM or 76 CBM of nominal internal capacity, but this does not mean cargo will always load efficiently to that exact volume.
Package Shape
Irregular package geometry can leave unusable voids inside the container.
Door Clearance
Cargo must physically pass through the available door opening when conventional door loading is used.
Stacking
Cargo that cannot safely stack may use more floor area and reduce effective volume utilization.
Container Gross Weight, Tare & Payload
Weight planning must consider both equipment limitations and inland transportation conditions.
Maximum Gross Weight
The maximum combined mass of the container and cargo permitted by the applicable equipment specification and operational requirements.
Tare Weight
The empty container's own weight.
Payload
The cargo weight that can be carried based on the equipment's permissible gross weight and tare weight.
Road / Route Restrictions
The permissible road-delivery weight can be more restrictive than the container's maximum gross figure depending on country, route, vehicle and local regulations.
Which Container Is Right for Your Cargo?
Use cargo characteristics as the first filter, then validate the specific equipment against route and carrier requirements.
This flow is only a starting point. Actual equipment should be confirmed against the cargo's dimensions, weight, packaging, loading method, route, carrier availability and applicable requirements.
Container Selection by Cargo Type
Match the cargo characteristics with the equipment's physical and operational capabilities.
| Cargo | Potential Equipment | Main Consideration |
|---|---|---|
| Cartons / General Goods | 20GP / 40GP / 40HC | Volume, dimensions and weight |
| High-Volume Light Cargo | 40HC / 45HC where available | Volume utilization and route availability |
| Temperature-Sensitive Cargo | 20 Reefer / 40HC Reefer | Temperature and cargo handling requirements |
| Machinery Requiring Top Loading | Open Top / Hardtop | Lifting access and cargo dimensions |
| Oversized Machinery | Flat Rack / Platform | Height, width, securing and OOG acceptance |
| Heavy Project Cargo | Flat Rack / Platform | Weight distribution and lashing |
| Liquid Bulk | ISO Tank | Product compatibility and tank specification |
| Ventilation-Sensitive Cargo | Ventilated equipment where available | Airflow requirements |
| Compatible Bulk Products | Bulk container | Commodity and equipment compatibility |
Choosing Containers for Dangerous Goods
Dangerous-goods equipment selection depends on the commodity, packing method and transport requirements.
Dangerous goods do not automatically require one particular container type. The appropriate equipment depends on the physical form and classification of the cargo, packing method, transport mode, carrier requirements and applicable regulations.
Dry DG
Certain packaged dangerous goods may move in suitable general-purpose equipment when all applicable requirements are met.
Temperature-Sensitive DG
Certain dangerous goods may require temperature control depending on the product and transport instructions.
Liquid DG
Compatible tank equipment may be required for certain liquid dangerous goods.
Oversized Hazardous Cargo
May require specialized equipment, securing arrangements, carrier review and additional operational planning.
Dry Container vs Reefer
The primary distinction is active temperature-control capability and the associated internal-space trade-off.
| Consideration | Dry Container | Reefer |
|---|---|---|
| Temperature control | No active temperature control | Refrigeration capability |
| Main cargo | General goods | Temperature-sensitive cargo |
| Usable internal space | Generally larger for the same nominal size | Reduced due to refrigeration equipment |
| Main planning concern | Fit, weight and loading arrangement | Cargo + temperature + handling requirements |
Representative carrier specifications illustrate that a 20' reefer has less internal capacity than a 20' standard dry container, for example approximately 28.1 CBM versus 33.2 CBM in one published equipment example.
Open Top vs Flat Rack
The distinction is primarily about how the cargo needs to be loaded and whether an enclosed equipment envelope is still practical.
Open Top
Best considered when cargo requires top-loading access but can otherwise be accommodated within the basic container structure and loading envelope.
- Top loading
- Crane access
- Heavy or tall cargo within permissible dimensions
Flat Rack
Best considered when the cargo cannot be accommodated inside an enclosed container and requires an open platform arrangement.
- Oversized cargo
- Heavy machinery
- Project cargo
- Special securing arrangements
The final choice depends on actual cargo dimensions, center of gravity, lifting method, securing points, route and carrier acceptance.
Container Loading & Cargo Planning
Physical loading planning determines how efficiently cargo can actually use the available equipment.
Selecting the right container is only the first step. The cargo also needs to be physically planned inside the equipment.
Package Dimensions
Actual length, width and height determine how the cargo can be arranged.
CBM
Cargo volume helps compare available container capacity and identify the approximate space requirement.
Stacking
Stackability and package strength influence vertical utilization.
Weight Distribution
Cargo weight should be distributed appropriately within the container.
Door Clearance
Cargo must physically pass through the applicable loading opening.
Securing
Cargo may require dunnage, blocking, bracing, lashing or other securing arrangements.
The practical container-loading process therefore combines dimensions, weight, packaging, stacking, securing and route requirements rather than relying only on theoretical CBM.
Container Selection and FCL vs LCL
Container planning interacts with the broader choice between dedicated and consolidated cargo.
FCL — Full Container Load
A dedicated container is used for the shipment. Equipment selection becomes directly linked to cargo volume, physical fit, weight and loading requirements.
LCL — Less than Container Load
Cargo shares container capacity with other shipments. CBM, package dimensions, handling requirements and consolidation conditions become important planning factors.
Container Transportation by Truck
The container must remain practical not only for ocean transport, but also for inland movement.
Selecting a container is not only a vessel or port decision. The container also needs to move by road. Container dimensions and gross weight can therefore affect trailer selection, road restrictions, route planning and final delivery.
The reverse movement applies to import cargo, where a container may move from the port after customs release to the consignee, warehouse or factory.
Containers, Warehousing & Cargo Handling
Container logistics often connects directly with warehousing, stuffing, stripping and distribution.
Containers may move to or from warehouses for stuffing, stripping, consolidation, deconsolidation, storage, cargo handling or distribution.
Container Shipping & Customs Clearance
Container selection does not replace proper customs classification and import/export compliance.
Container selection does not remove customs requirements. Cargo description, HS classification, customs value, origin, packing details and applicable restrictions remain relevant to the customs process.
Customs Clearance
Connect containerized cargo with the customs and import process.
Explore Customs →Import Tax Calculator
Estimate duty and import-tax components for Indonesia planning.
Open Import Tax →Ocean Freight
Coordinate the international container transportation process.
Explore Ocean Freight →Container Shipping from Indonesia
Container planning in Indonesia needs to connect the cargo origin, port, inland route and shipment requirements.
For shipments originating in Indonesia, container selection should be considered together with the factory or warehouse location, port, cargo readiness, trucking route, customs requirements, carrier availability, destination and receiving facility.
Jakarta / Tanjung Priok
Major container logistics gateway for cargo moving through the Jakarta region.
Surabaya & Semarang
Important logistics locations serving manufacturing, export and domestic distribution requirements.
Other Indonesian Gateways
Panjang, Belawan, Batam, Banjarmasin, Balikpapan and Makassar may form part of container logistics planning according to the route.
Container availability and equipment type are trade-lane and carrier dependent. The correct container should therefore be confirmed against the actual booking and cargo requirements.
Smart Tools for Container Planning
Use practical tools to estimate cargo volume, visualize loading and review supporting logistics information.
3D Load Planner
Visualize cargo placement and container utilization before stuffing.
Open 3D Load Planner →Unit Converter
Convert common logistics dimensions and weight measurements.
Explore Logistics Tools →Cargo Guide
Understand how cargo characteristics can influence handling and equipment selection.
Explore Cargo Guide →Common Container Selection & Loading Mistakes
Common planning mistakes can create problems during loading, trucking or transport.
Choosing Only by CBM
Cargo may fit theoretically by volume but fail physically because of package dimensions or loading restrictions.
Ignoring Door Opening
Internal container space is not the same as the usable loading opening.
Ignoring Weight Distribution
Cargo weight must be considered together with location and securing arrangement.
Overestimating Usable Capacity
Package shape and voids can significantly reduce practical utilization.
Ignoring Special Cargo Requirements
DG, reefer, oversized and project cargo require additional equipment planning.
Ignoring Road Transportation
The container may be acceptable for ocean transportation while still creating inland weight or route constraints.
Assuming 45HC Is Universally Available
45FT equipment depends on carrier, trade lane, terminal and receiving capability.
Using Outdated Container Specifications
Equipment specifications change by fleet and manufacturer, so actual booking specifications should be confirmed.
Container FAQ
Common questions about container types, capacity, dimensions and equipment selection.
Not Sure Which Container Your Cargo Needs?
Send us your cargo description, number of packages, dimensions, gross weight, CBM, loading method, origin and destination. NS Continent can help assess the appropriate container and logistics arrangement for your shipment.