Operations
Freight Density Class: The PCF Math That Sets LTL Before Anyone Bids
Density is weight divided by cube. That PCF is what freight density class follows on most LTL. Measure the stack that will actually ride.
Updated 2026-08-20 · freight density class
Freight density class is the practical half of LTL: not the marketing name of the commodity, but how many pounds sit in each cubic foot of the pallet as it will ride. Carriers do not bill the air you feel entitled to ship. They bill the cube. If you never run pounds per cubic foot (PCF), you are guessing NMFC class and volunteering for a reclass.
COL Freight Solutions will price from measured freight, not from a hopeful class. Licensed property broker, USDOT 4427559, MC-1741651. Include L×W×H and scale weight on every RFQ: shipping@colfreightsolutions.com · 561-880-9808.
The freight density class formula on a warehouse floor
Cubic feet = length × width × height in inches ÷ 1,728. PCF = weight in pounds ÷ cubic feet. Measure the handling unit as the trailer will see it: pallet length and width, including overhang, and the top of the stack, not the carton height you wish you had. Round in the carrier’s favor if you are on a borderline; surprise cubes go to the terminal.
If you have multiple SKUs on one pallet, you still have one cube. The density of that stack is what LTL sees.
How PCF becomes class
NMFC density scales map PCF bands to class numbers. Higher PCF (more pounds in the same box) generally means a lower class and a kinder CWT. Foam furniture and assembled displays live on the painful end. Steel fittings live on the other. Packaging projects that lower height without losing product are freight projects.
Mistakes that inflate cube
Pyramids of cartons that cannot nest. Palletizing 40×48 when the freight is 42×50. Stretch wrap that adds a ghost inch you forgot to measure. Shipping half-empty gaylords. Each mistake is a class bump you will fund.
- Use a tape on length, width, and height every time the pack-out changes.
- Weigh on a calibrated scale, not a WMS guess.
- If PCF is low and pallet count is high, dual-quote FTL.
Send density with the quote, not after the claim
Put PCF or the raw dims on the COL Freight request so LTL class is an assumption you both can see. If density says the trailer is filling up, we will say FTL may win. Honest cube is also how recurring spend stays measurable for the Transportation Cost Recovery Program™. Saint Petersburg, FL and Los Gatos, CA desks.
