| Steel Shipping Container |
Corrosion-resistant steel panels, reinforced corner posts, double doors, and a marine-grade plywood floor. |
High
Provides strong resistance to rain, wind, dust, and external impact when door seals and panels are in good condition. |
High
Designed for lifting, stacking, and repeated intermodal handling through standardized corner castings. |
High
Suitable for extended storage if inspected for corrosion, water ingress, roof damage, and floor deterioration. |
Moderate
Closed steel walls can trap moisture; desiccants, cargo ventilation, and moisture barriers may be required. |
Lockable door hardware, a protected padlock area, intact rubber gaskets, and evidence of regular inspection. |
Machinery, boxed goods, furniture, tools, packaged materials, and mixed commercial cargo. |
Can develop condensation, commonly called container rain, during temperature changes; steel may also transfer heat rapidly. |
Low risk when properly prepared |
| Insulated Shipping Container |
Steel exterior with insulated wall, roof, and door panels; some units include a finished interior lining. |
High
Reduces heat transfer and helps moderate temperature swings compared with an uninsulated steel container. |
High
Retains the structural advantages of a steel shipping container, although interior panels must be protected from puncture. |
High
Appropriate for goods sensitive to temperature fluctuation, provided moisture and pest controls are maintained. |
Moderate to high
Insulation slows temperature change but does not remove internal moisture; controlled ventilation remains important. |
Sealed doors, undamaged insulation, secure locking points, and no gaps around wall or roof joints. |
Electronics, documents, textiles, household goods, finished products, and temperature-sensitive non-perishable items. |
Higher purchase or rental cost; insulation alone does not provide precise temperature or humidity control. |
Low risk for climate-sensitive dry cargo |
| Ventilated Shipping Container |
Steel construction with fixed ventilation openings designed to allow passive air exchange. |
Moderate
Offers protection from direct weather exposure, but ventilation openings must be designed to prevent rain entry. |
High
Maintains the load-bearing and handling characteristics of a standard steel container. |
Moderate to high
Useful for cargo that benefits from air circulation, subject to local humidity and storage conditions. |
High
Passive airflow can reduce moisture accumulation, although it cannot guarantee a stable relative humidity. |
Vent covers, insect screens, door seals, and lock protection should be checked before loading. |
Dry agricultural products, timber, bagged materials, and cargo that can tolerate ambient temperature changes. |
Not ideal for dust-sensitive, water-sensitive, or highly climate-sensitive cargo; humid air may still enter. |
Moderate risk depending on climate |
| Refrigerated or Temperature-Controlled Container |
Insulated panels, insulated doors, a refrigeration unit, temperature sensors, and a powered control system. |
Very high when powered
Can maintain a specified temperature range if the equipment is correctly set, monitored, and continuously supplied with power. |
High
Built for international transport, but machinery and control components require additional inspection and protection. |
Moderate
Suitable only when power availability, servicing, alarm response, and temperature records are reliably managed. |
High
Designed to manage temperature and airflow, but condensation can still occur if cargo is loaded warm or wet. |
Working door seals, alarm functions, temperature logging, power connections, and an emergency response procedure. |
Perishable food, pharmaceuticals, chemicals, and other goods requiring a defined temperature range. |
High operating cost; loss of power or equipment failure can quickly create cargo risk. |
Low risk with continuous monitoring; high risk after power failure |
| Flexible Bulk Container or Liner System |
Flexible fabric bag or internal liner installed inside a rigid transport container; may include discharge fittings. |
Moderate
Protection depends heavily on the outer container, liner integrity, and closure system. |
Low to moderate
The rigid outer container handles external loads, while the flexible liner is vulnerable to puncture and abrasion. |
Moderate
Appropriate for compatible dry bulk products when the liner is clean, sealed, and protected from sharp edges. |
Low
Limited airflow inside the liner; moisture content and product temperature must be controlled before loading. |
Sealed filling and discharge points, liner compatibility, puncture resistance, clean interior surfaces, and tamper evidence. |
Suitable dry powders, granules, and non-hazardous bulk materials approved for the specific liner system. |
Not suitable for all cargo types; leakage, contamination, static electricity, or product incompatibility may occur. |
Moderate risk requiring cargo-specific validation |
| Plastic or Composite Storage Container |
High-density plastic or composite shell, often with molded ribs, gasketed lids, and reusable closures. |
Moderate
Resists surface corrosion and light rain, but performance depends on lid design, UV exposure, and wall thickness. |
Moderate
Good for local handling and smaller loads; generally less suitable for heavy stacking and repeated ocean transport. |
Moderate
Useful for warehouse or domestic storage when protected from extreme heat, UV radiation, and excessive loading. |
Low
Airtight designs may retain internal moisture unless vented or packed with appropriate moisture-control materials. |
Lockable lids, tamper-resistant closures, UV stability, impact-resistant corners, and secure internal packing. |
Small parts, tools, documents, household items, and moisture-tolerant goods requiring reusable handling units. |
Limited dimensions and stacking strength; plastic may become brittle under prolonged UV exposure or cold conditions. |
Moderate risk for short-distance or controlled storage |
| Wooden Export Crate |
Heat-treated timber or plywood panels with a nailed, screwed, or bolted frame; may include vapor barriers and blocking. |
Moderate
Can provide good protection when sealed, wrapped, and elevated above wet surfaces, but wood is vulnerable to moisture. |
Moderate to high
Strength depends on timber grade, joint design, internal bracing, and the quality of blocking and cushioning. |
Moderate
Works for long-term storage only when kept dry, ventilated, pest-free, and protected from ground moisture. |
High when designed correctly
Breathable construction can reduce trapped moisture, while vapor barriers protect moisture-sensitive cargo when properly installed. |
ISPM 15 compliance for regulated wood packaging, sound fasteners, intact panels, and no signs of insects, mold, or rot. |
Heavy machinery, industrial components, fragile equipment, and oversized items requiring custom internal bracing. |
Wood can absorb moisture, deform, split, or support mold; packaging may require inspection at border and port facilities. |
Moderate risk requiring careful preparation |
