Freight class 77.5
Class 77.5 is the band for freight with a density of 13.5 to 15 lb/ft³.
The density range
A shipment is class 77.5 when its density is 13.5 up to but not including 15 lb/ft³. Density is the total weight of the shipment divided by the total cubic feet it occupies, pallet and packaging included.
A shipment that lands in class 77.5
A standard 48 × 40 inch pallet, 48 inches tall, weighing 750 pounds.
48 × 40 × 48 = 92,160 cubic inches ÷ 1,728 = 53.33 cubic feet
750 ÷ 53.33 = 14.06 lb per cubic foot → class 77.5
Freight that usually lands here
Typical examples include tires, bathroom fixtures, packaged ceramics.
Treat these as illustrations rather than a lookup. Density decides the band, so the same product can fall either side of a line depending on how it is packed, palletised and wrapped.
What to watch on class 77.5
A narrow band, only 1.5 lb/ft³ wide. Shipments here are close to an edge almost by definition, which makes an accurate height measurement more important than usual.
Where class 77.5 sits
The next band down is class 70, which covers denser and cheaper freight. The next band up is class 85, for lighter freight at a higher rate.
Work out your own class
Enter your dimensions and weight and the calculator returns cubic feet, density and the class, and tells you if you are sitting close to a boundary.
Open the freight class calculator