Measure the height, width, and length of the shipment in inches. Measure to the farthest points, including skids or other packaging. On shipments with multiple pieces, repeat Step 1 for each piece. Multiply the three measurements (height x width x length). The result is the total cubic inches of the shipment. If you have multiple pieces, multiply the height x width x length for each piece. Take the results for each piece and add them together to get the total cubic inches. 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. Divide the total 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 800 pounds with dimensions of 48 inches x 48 inches x 72 inches:
1. Multiply 48" x 48" x 72" = 165,888 cubic inches
2. Divide 165,888 by 1,728 = 96 cubic feet
3. Divide 800 pounds by 96 cubic feet = 8.34 pounds per cubic feet (PCF), i.e., the shipment density