15,16,18,20 and 25 cubic yard capacity Roll On Roll Off containers measure around 1.5m in height and 6m in length. Rather than being lifted by chains and hydraulic arms, they roll off the back of the delivery lorry and roll back on again when collected. This means that they are ideally suited for heavy waste streams such as Hardcore, Soil, and other dense materials. Loading is made easy too with a large hinged door at one end.