Freight Class Calculator

Enter your shipment dimensions and weight to calculate density and determine the suggested NMFC freight class for LTL shipping.

Calculate Freight Class

Enter dimensions and weight for one handling unit

Number of Pieces / Units *

Dimensions Per Piece (inches) *

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Total Weight (lbs) *

NMFC Freight Class Reference Table

The National Motor Freight Classification (NMFC) system assigns freight classes from 50 to 500 based on density, stowability, handling, and liability. Below is the density-based classification used by most LTL carriers.

Class	Density (PCF)	Example Commodities
Class 50	50+ PCF	Steel rods, bricks, cement, sand, nuts & bolts
Class 55	35 – 50 PCF	Portland cement, hardwood flooring, mortar
Class 60	30 – 35 PCF	Bottled beverages, car parts, concrete blocks
Class 65	22.5 – 30 PCF	Bottled water, car accessories, boxed books
Class 70	15 – 22.5 PCF	Auto parts, food items, restaurant equipment
Class 77.5	13.5 – 15 PCF	Tires, bathroom fixtures, garment racks
Class 85	12 – 13.5 PCF	Crated machinery, cast iron stoves, safes
Class 92.5	10.5 – 12 PCF	Computers, monitors, refrigerators
Class 100	9 – 10.5 PCF	Wine, boat covers, canvas, caskets
Class 110	8 – 9 PCF	Cabinets, framed art, table saws
Class 125	7 – 8 PCF	Appliances, small household goods, vending machines
Class 150	6 – 7 PCF	Auto body parts, bookcases, couches (crated)
Class 175	5 – 6 PCF	Clothing, couches, stuffed furniture
Class 200	4 – 5 PCF	Auto sheet metal, aluminum tables, packaged mattresses
Class 250	3 – 4 PCF	Bamboo furniture, mattresses, plasma TVs
Class 300	2 – 3 PCF	Model boats, wood cabinets, tables & chairs (KD)
Class 400	1 – 2 PCF	Deer antlers, ping pong balls, lightweight wood items
Class 500	< 1 PCF	Low-density freight: bags of gold fish, ping pong balls, Styrofoam

Density is the primary classification factor, but NMFC also considers stowability (how easily the freight can be packed with other items), handling requirements (special equipment or care needed), and liability (value, fragility, perishability). Your actual freight class may differ from the density-based suggestion above.

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