Selecting a 20ft container requires understanding the distinction between Standard Dry Vans (GP), High Cubes (HC), and specialized units like Reefers or Open Tops. For general cargo, a standard 20ft GP is the industry benchmark. However, if you are transporting perishable goods, you must specify Refrigerated Containers with integrated cooling units. Always verify the Max Payload capacity, which typically ranges around 28,000 kg to 30,000 kg, to ensure it meets your heavy machinery or bulk material requirements.