Cu. is an abbreviation commonly used in the supply chain to refer to the unit of measurement for volume, specifically cubic. It represents cubic measurement and is often used in conjunction with other units, such as cubic feet (Cu. Ft.) or cubic meters (Cu. M.). Cu. is used to quantify the capacity or volume of containers, storage spaces, or cargo. It is essential for determining space requirements, calculating shipping costs, and optimizing storage and transportation capacities in the supply chain.