The National Motor Freight Classification (NMFC) details 18 freight classes, where Class 50 is the lowest and Class 500 is the highest. The higher the class, the higher the rate for every hundred pounds you ship.
UPS bases freight class on four shipment characteristics:
If you need additional help to determine your freight class, please contact UPS Customer Service at 1-800-333-7400. You can also find more detailed information about freight classes through the National Motor Freight Traffic Association (NMFTA).
The National Motor Freight Traffic Association (NMFTA) is a nonprofit organization comprised of 900 motor carriers and transportation companies operating in interstate, intrastate and foreign commerce. NMFTA offers an online version of the National Motor Freight Classification (NMFC), a standard that provides a comparison of commodities moving in commerce. To purchase an online subscription, select the link below.