Freight class, also known as NMFC (National Motor Freight Classification), is a standardized system used in the shipping industry to classify commodities for interstate, intrastate, and international LTL (less than truckload) shipments. This classification system helps facilitate efficient freight identification and logistics management.
What is the Purpose of Freight Class?
The NMFC system aims to provide a standard comparison of commodities, simplifying the evaluation of billions of different products shipped annually in the global market. It establishes a common ground between shippers and carriers, aiding in smooth and productive freight rate negotiations and logistics.
Who Must Participate in the NMFC?
Transportation companies that reference the NMFC in their contracts, rate schedules, or tariffs must participate in the NMFC®. This includes adhering to commodity descriptions, classes, rules, packaging specifications, and bills of lading. Non-participating companies do not apply NMFC provisions. Participation requires completing a license agreement and paying an annual fee to the NMFTA.
For more information on NMFC participation, contact NMFTA Customer Service at 866-411-6632.
How Do I Determine Freight Class?
Freight class describes a commodity’s overall “transportability.” It is determined by four primary metrics:
1. Density: Defined as the space an item occupies in relation to its weight. For example, Class 50 is assigned to freight over 50 lbs. per cubic foot, while Class 500 is for freight less than 1 lb. per cubic foot.
2. Ease of Handling: Cargo that requires special care due to irregularities in weight, shape, fragility, or hazardous properties may have a different classification.
3. Liability: The risk of theft or damage, especially for perishable or dangerous items, influences freight class.
4. Stowability: Freight subject to specific regulations or that cannot be loaded with other types of freight affects its classification.
Step-by-Step Instructions for Calculating Freight Density
1. Measure the length, width, and height of your freight in inches (including packaging).
2. Multiply these dimensions to get the size in cubic inches.
3. Convert cubic inches to cubic feet by dividing by 1,728.
4. Divide the weight of your freight (in pounds) by the cubic feet to get the density.
This will give you the density of your freight.
L x W x H = inches3 # inches3 / 1,728 = ft3 weight in lbs/ ft3 = density
Please also see the following link to an online calculator for easy determination of Freight Class:
About ShipTime:
Ship Smarter – with ShipTime, we are a true partner beyond just discounted rates with the Top National Couriers. We provide a best in class shipping platform packed with features and backed by our legendary Heroic Support™ team.
You can sleep easy with ShipTime’s best-in-class customer care. Our bilingual team is available by phone, live chat, or email Monday – Friday from 8:30AM to 8PM EST.