Flat rack containers Flat rack containers are especially suitable for heavy loads and cargo that needs loading from the top or sides, such as pipes and machinery. You will find collapsible containers and non-collapsible containers with or without walls. Flat rack containers are manufactured from steel and come in 20' and 40' sizes. Flat rack container dimensions Specific dimensions and capacity of flat rack containers may vary depending on the container manufacturer, the age of the container and the container owner. The specifications listed below are, however, representative. 20´ flat rack container Tare weight Payload capacity Cubic capacity Internal length 2,360 kg 30,140 kg 32.7 m3 5.94 m 5,203.8 lbs 66,458.7 lbs 1,154.3 cu ft 19.5 ft Internal width Internal height 2.35 m 2.35 m 7.7 ft 7.7 ft 40´ flat rack container Tare weight Payload capacity Cubic capacity Internal length 5,000 kg 40,000 kg 62.2 m3 12.13 m 11,025 lbs 88,200 lbs 2,195.7 cu ft 39.8 ft Internal width Internal height 2.40 m 2.14 m 7.9 ft 7 ft