The 6 meter (20 ft) refrigerated container is a heavy-duty temperature-controlled storage and transportation solution designed for perishable and temperature-sensitive goods. With a 6.06 meter (20 ft) external length and an internal capacity of approximately 28–33 m³, it provides substantial cold-storage space while remaining practical for commercial, industrial, agricultural, and logistics applications. The refrigeration system is designed to maintain temperatures from -30°C to +30°C, making the container suitable for both chilled and frozen cargo. Digital temperature control, rapid cooling, continuous air circulation, and stable temperature maintenance help provide a controlled environment for products that require specific storage conditions. The container combines a corrosion-resistant Corten steel exterior with high-density polyurethane insulation, an aluminium T-bar floor, and a food-grade aluminium or stainless steel interior. 6 Meter (20 ft) Refrigerated Container Specifications Specification Details External Length 6.06 m (20 ft) External Width 2.44 m External Height 2.59 m Internal Length Approx. 5.44 m Internal Width Approx. 2.29 m Internal Height Approx. 2.26 m Door Opening Width Approx. 2.29 m Door Opening Height Approx. 2.26 m Tare Weight Approximately 2,900–3,200 kg Maximum Gross Weight 30,480 kg Payload Capacity Up to 27,000 kg Internal Capacity Approximately 28–33 m³ Flooring Aluminium T-Bar floor Insulation High-density polyurethane foam Power Supply 380–460V, 3 Phase, 50/60Hz Temperature Range The refrigeration system is capable of maintaining controlled temperatures between: -30°C to +30°C Key temperature-control capabilities include: Accurate digital temperature control Suitable for chilled and frozen cargo Rapid cooling Stable temperature maintenance Continuous temperature monitoring Controlled internal airflow Fresh-air ventilation settings where required Humidity management depending on refrigeration configuration The wide temperature range allows the container to be configured for different types of temperature-sensitive cargo. Construction The 6 meter (20 ft) refrigerated container is constructed using materials selected for strength, insulation, hygiene, and long-term use. Key construction features include: Heavy-duty Corten steel exterior Corrosion-resistant construction Marine-grade aluminium or stainless steel interior Fully insulated walls, roof, and floor High-density polyurethane insulation Weatherproof and watertight design Reinforced corner castings for lifting and stacking Lockable double cargo doors Heavy-duty door seals Durable aluminium T-bar flooring The insulated structure helps minimise temperature loss and reduces the effect of external weather conditions on the refrigerated interior. Refrigeration Unit The container may be fitted with established refrigeration systems such as: Carrier Thermo King Daikin Star Cool Typical refrigeration features include: Digital temperature controller Automatic defrost cycle Fresh-air ventilation control Humidity management Continuous temperature monitoring Energy-efficient compressor High-airflow circulation throughout the container Rapid temperature pull-down The refrigeration system requires a 380–460V, 3-phase, 50/60Hz electrical supply. Aluminium T-Bar Flooring The aluminium T-bar floor is designed to support effective airflow throughout the refrigerated compartment. The raised floor profile allows cold air to circulate beneath the cargo, helping distribute temperature more evenly. It is suitable for pallets, cartons, crates, containers, and other commercial cargo while providing a durable and easy-to-clean surface. Interior Features The refrigerated interior is designed for hygienic and efficient cold-storage operations. Features include: Food-grade stainless steel or aluminium interior Aluminium T-bar floor Improved air circulation beneath cargo Easy-to-clean surfaces High-density insulation Reduced temperature loss Multiple cargo securing points Interior lighting available as an option Common Applications A 6 meter (20 ft) refrigerated container can be used for storing and transporting a wide range of temperature-sensitive products, including: Fresh fruit and vegetables Frozen meat and poultry Seafood Dairy products Ice cream Pharmaceuticals Vaccines Flowers and plants Chocolate Beverages Catering supplies Cold warehouse overflow Commercial cold storage Event refrigeration Agricultural products Food processing products Chilled and Frozen Storage The temperature-controlled environment makes the 6 meter (20 ft) refrigerated container suitable for both chilled and frozen storage applications. The refrigeration system can be configured according to the required operating temperature, while the insulated construction helps maintain the selected temperature inside the container. Security The refrigerated container features lockable double cargo doors with heavy-duty seals and a robust steel exterior. These features help protect temperature-sensitive cargo against unauthorised access and external environmental conditions. Additional security equipment, such as container lockboxes and high-security padlocks, can be fitted where required. Benefits Large 6.06 meter (20 ft) refrigerated storage capacity Suitable for chilled and frozen cargo Temperature range from -30°C to +30°C High-density polyurethane insulation Strong Corten steel exterior Food-grade interior Aluminium T-bar flooring Excellent internal airflow Digital temperature control Rapid cooling capability Continuous temperature monitoring Weatherproof and watertight construction Secure lockable cargo doors Suitable for commercial and industrial use Easy to transport and relocate Suitable for cold storage and refrigerated transportation Long-term reusable storage solution Optional Features and Accessories Depending on the required application, additional options may include: High-security container lockbox High-security padlocks Interior LED lighting Additional cargo securing points Temperature monitoring systems Additional ventilation controls Storage shelving Racking systems Custom exterior paint colours Electrical modifications Delivery Across South Africa 6 meter (20 ft) refrigerated containers can be delivered to locations throughout South Africa, with delivery options also available to selected destinations across Southern Africa. Delivery requirements depend on the destination, site access, unloading arrangements, and placement requirements.


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At KNF Container Depot, all products are inspected before delivery or collection.

Returns are only accepted for products that are faulty or significantly different from the agreed specifications. Customers must notify us within 30 days of receiving the product.

Custom-built or modified containers and trailers are non-returnable, unless they are defective due to our workmanship.

Approved returns must be in their original condition. Return transport costs may apply where the issue is not due to KNF Container Depot.

For returns or assistance, please contact us at sales@knfcontainerdepot.co.za