Sinks that are dedicated to cleaning are considered janitorial sinks. They include the ubiquitous mop sink, but also other types of work sinks, such as the all-purpose utility sink. In addition, some sinks that integrate a cabinet into the unit provide storage for cleaning chemicals and supplies. There are floor based sinks as well as wall-mount sinks and floor units. All janitorial sinks are built to withstand the rigors of heavy-duty cleaning, mopping and constant usage.