A shipment’s density is one of the factors that determines the freight rate. Shippers need to know how to calculate a shipment’s density so they can properly describe their goods on the bill of lading. The total weight of the shipment is divided by the total cubic feet to determine the density.
Step 1. Measure the height, width, and depth of the shipment in inches. Measure to the farthest points, including skids or other packaging.
Step 2. Multiply the three measurements (height x width x depth). The result is the total cubic inches of the shipment.
Step 3. Divide the total cubic inches by 1,728 (the number of cubic inches in a cubic foot). The result is the cubic feet of the shipment. Step 4. Divide the weight (in pounds) of the shipment by the total cubic feet. The result is the pounds per cubic foot, i.e., density.
For example, if the skid weighs 500 pounds with dimensions of 42 inches x 48 inches x 48 inches: Next you will need to class the freight. Use the chart below to figure out the class of the freight
