Step by Step: Freight Class Calculation
- Weight: Begin by weighing your freight using a calibrated NTEP-certified floor or forklift scale. Include the weight of the pallet and packaging. Measure in pounds for the density calculation.
- Measurement: Measure the widest, longest, and highest points of your shipment, including any overhang or protrusions. Standard pallets are typically 48 inches long and 40 inches wide.
- Density: Calculate the density of your shipment:
- Cubic Feet: Multiply length x width x height, then divide by 1,728 (cubic inches per cubic foot). Formula: (L x W x H) / 1728
- Calculate Density: Divide shipment weight by cubic feet. Formula: weight / cubic feet = density
- Assign Your Freight Class: Use the NMFTA class-based grading system, with eighteen classes ranging from 50 to 500. Freight classes are primarily determined by density (weight per cubic foot), but factors like value, stowability, handling, and liability can also impact classification. Refer to an official NMFC code book to confirm the correct freight class.
By following these steps, or by using the freight class calculator above, you can determine your LTL freight class accurately. Consider weight, measurements, and density, and reference the NMFTA classification system for proper assignment.
Don’t hesitate to contact our freight experts with any questions.
Freight Class Chart
| Freight class code |
Type of freight |
Weight per cubic ft |
| 50 |
Durable freight that fits on a standard 4′ x 4′ pallet |
50+ lbs. |
| 55 |
Bricks, cement, hardwood flooring, construction materials |
35–50 lbs. |
| 60 |
Car accessories, car parts |
30–35 lbs. |
| 65 |
Car accessories and parts, boxed books, bottled drinks |
22.5–30 lbs. |
| 70 |
Car accessories and parts, auto engines, food items |
15–22.5 lbs. |
| 77.5 |
Tires, bathroom fixtures |
13.5–15 lbs. |
| 85 |
Crated machinery, cast iron stoves |
12–13.5 lbs. |
| 92.5 |
Computers, monitors, refrigerators |
10.5–12 lbs. |
| 100 |
Car covers, canvas, boat covers, wine cases, caskets |
9–10.5 lbs. |
| 110 |
Cabinets, framed art, table saws |
8–9 lbs. |
| 125 |
Small home appliances |
7–8 lbs. |
| 150 |
Auto sheet metal, bookcases |
6–7 lbs. |
| 175 |
Clothing, couches, stuffed furniture |
5–6 lbs. |
| 200 |
Sheet metal parts, aluminum tables, packaged mattresses, aircraft parts |
4–5 lbs. |
| 250 |
Mattresses and box springs, plasma TVs, bamboo furniture |
3–4 lbs. |
| 300 |
Model boats, assembled chairs, tables, wood cabinets |
2–3 lbs. |
| 400 |
Light fixtures |
1–2 lbs. |
| 500 |
Gold dust, ping pong balls |
<1 lb. |
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