Roll-off (dumpster)
In North America, a roll-off is a dumpster equipped with wheels to facilitate placement and removal of the dumpster. The container is designed to be transported by special roll-off trucks. While most roll-off containers have a swinging door on the end for easier disposal of waste, some roll-off containers are not open-top; for example, those used with commercial or industrial trash compactors are often closed at the top in order to prevent persons from entering.
Roll-offs are commonly used to contain loads of construction and demolition waste or other waste types, especially when the volume of waste is high. The material in the roll-off may be taken to a landfill, recycled, or recovered or disposed of using some other means.