what is 1 cu ft refers to the measurement of one cubic foot, which is a unit of volume used in shipping and storage. One cubic foot is equal to the volume of a cube that measures 12 inches on each side. In practical terms, it is often used to measure the size of packages, boxes, or shipping containers. For example, a 1-cu ft box can hold items such as clothing, small electronics, or other goods. Understanding cubic feet is important for calculating shipping costs, as many carriers base their rates on the size and weight of the package.