Shipping Container Size & Dimensions Guide
A Complete Reference for Logistics, Procurement, and Supply Chain Professionals

1. Introduction to ISO Standard Containers

Shipping containers are standardized under ISO 668, ensuring global compatibility in handling, stacking, and transport. This guide covers the most widely used container types and their key specifications.

2. Dry Containers (General Purpose)

20ft Standard Container

• External Dimensions: 20' L × 8' W × 8'6" H (6.058m × 2.438m × 2.591m)

• Internal Dimensions: 19'4" L × 7'8" W × 7'10" H (5.898m × 2.352m × 2.385m)

• Door Opening: 7'8" W × 7'5" H (2.343m × 2.280m)

• Capacity: 1,172 cu ft (33.2 cbm)

• Max Payload: 25,000 kg (approx.)

• Tare Weight: 2,300 kg

40ft Standard Container

• External: 40' L × 8' W × 8'6" H (12.192m × 2.438m × 2.591m)

• Internal: 39'5" L × 7'8" W × 7'10" H (12.032m × 2.352m × 2.385m)

• Capacity: 2,390 cu ft (67.7 cbm)

• Max Payload: 27,600 kg

40ft High Cube Container

• External Height: 9'6" (2.896m)

• Internal Height: 8'10" (2.698m)

• Capacity: 2,694 cu ft (76.4 cbm)

• Ideal for: Lightweight, voluminous cargo

3. Specialized Container Types

20ft / 40ft Open Top Containers

• Features: Removable tarpaulin roof, convertible to fully open top

• Use Cases: Over-height cargo, top-loading requirements

20ft / 40ft Flat Rack Containers

• Features: Collapsible end walls, no side walls

• Capacity: 20ft – 40,000 kg max payload

20ft / 40ft Refrigerated Containers

• Temperature Range: -35°C to +30°C

• Power Supply: 440V three-phase

4. Key Selection Considerations

Load Planning Factors

• Stacking Weight Limit: 192,000–240,000 kg for 9-high stacking

• Floor Load Capacity: 4,880 kg/m² for standard plywood flooring

• Ventilation: 2-4 passive vents per side (optional)

Operational Specifications

• Lifting Points: Top and bottom corner castings

• Forklift Pockets: 40ft containers only (both ends)

• Stacking Capability: 9-high on vessel, 5-high on land

5. Comparison Table: Dry Container Dimensions

6. Industry Applications

• Standard Dry Containers: Consumer goods, packaged materials, machinery

• High Cube Containers: Furniture, textiles, lightweight commodities

• Open Top Containers: Machinery, timber, project cargo

• Flat Rack Containers: Vehicles, heavy equipment, construction materials

7. Compliance & Safety Notes

• CSC Plate: Required on all containers, certifying structural safety

• Customs Seals: Must meet ISO 17712 high-security standards

• Weight Regulations: SOLAS verified gross mass (VGM) required before loading

This guide serves as a quick reference for container selection, load planning, and logistics coordination. For detailed specifications or custom container solutions, consult our technical team with your specific requirements.