Large Ropak containers are a heavy-duty storage container. These plastic Ropak containers can be used to hold manufactured parts and bulk materials, such as appliance parts and automotive parts. Some of the Ropak containers can be released and collapsed into a compact and stackable unit. Because these bulk containers are made of a heavy-duty plastic, some can hold over 2,000 pounds. A Ropak container is deliberately constructed to be mobile, and easily transported around a warehouse floor through the use of forklifts and some pallet jacks.