Why carriers need your freight’s cubic footage
Space is limited on an LTL trailer, and every inch you use impacts how much you pay. That’s why carriers look at the cubic footage of your shipment, not just the weight. Getting your freight’s measurements right helps you avoid unexpected charges, stay compliant with carrier rules and improve freight planning overall. It’s a small step that can make a big difference in your shipping operations.
Use this quick guide to help you measure cubic footage correctly, avoid billing surprises and ensure your shipment goes smoothly.
What is cubic footage?
Cubic footage is a measure of the total space your shipment takes up. It’s calculated by multiplying the length, width and height of your freight in inches, then dividing by 1,728 (the number of cubic inches in a cubic foot):
(Length × Width × Height) ÷ 1,728 = Cubic Feet
How to measure it
There’s more than one way to get your freight’s measurements. The key is to make sure you’re getting accurate, consistent results, no matter how you go about it.
Technology-driven method
Many shippers use dimensioning systems to capture measurements quickly and precisely. These devices scan the freight, automatically calculate the length, width and height, and often feed the data directly into a TMS or quoting tool. Some systems also include weight verification, giving you a full density calculation in one step.
These tools are especially useful for high-volume operations or freight with irregular shapes, where manual measuring can be inconsistent or time-consuming.
Interested in freight dimensioning technology? Learn about Vaux Vision™, ArcBest’s latest innovation (currently in pilot) that turns a forklift into an on-the-go dimensioner.
Manual method
To manually measure cubic footage with a tape measure:
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Measure the longest sides of the shipment, including pallets or other packaging, in inches
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Include overhangs. If the product extends beyond the pallet, you must account for it
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Include “Do not stack” cones. Measure the height to the top of the cone.
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Multiply: Length × Width × Height
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Divide by 1,728 to convert to cubic feet
Example:
A pallet is 48" long × 40" wide × 60" high, and weighs 500 lbs
(48 × 40 × 60) ÷ 1,728 = 66.67 cubic feet
The density is calculated as follows:
500 lbs ÷ 66.67 cubic feet = 7.5 pounds per cubic foot (pcf)
Important note: Unitized or palletized freight measurements have to include the pallet, skid, crate or brace, and irregularly shaped freight must use the longest measurement for each side. This ensures all space is accounted for in the calculation. Remember to include any “Do not stack” cones in the height.
Suggested read: Why Accurate Freight Measurements Matter
Get an LTL quote
Another way to find the cubic footage of your shipment is to get an LTL freight quote online. Simply enter the dimensions of your freight, and it will be automatically calculated. Note that if incorrect measurements are entered, your price is subject to change.
