Freight Class Calculator
Empty Box LTL Shipping Guide

Freight Class for Empty Boxes

To estimate your shipment, use the Empty Boxes Freight Class Calculator.

The Empty Boxes Freight Class Examples use the current 13-tier density scale, effective July 19, 2025, and range from Class 100 to 400.

These are density-based estimates.

Empty Boxes density calculator

Calculate Your Empty Boxes Freight Class

A palletized empty-box shipment is preloaded as an example. Adjust the packaged dimensions or weight to calculate your empty box freight class.

Your result

Cubic feet

80.00

Density

3.25

lb/cu ft

Estimated freight class

250

This is an example density-based estimate. Update any field to calculate your shipment.

Freight Planning Calculators

Calculate and Plan Your Empty Boxes Shipment

Use the freight class, density, pallet, and linear-feet calculators to plan your packaged LTL shipment.

Freight classes shown on this page are density-based estimates for shipment planning. Actual classification may also depend on value, handling requirements, liability, stowability, dimensions, and other commodity-specific factors. Confirm the final freight class with your carrier, broker, or official NMFC resources before shipping. NMFC® is a registered trademark of the National Motor Freight Traffic Association, Inc. FreightClassCalculator.tools is an independent calculator and is not affiliated with, endorsed by, or licensed by NMFTA.