Density 12–13.5 lb/ft³ · NMFC classification. Part of freightcalcs.com.
Class 85 covers freight with a density of 12–13.5 lb/ft³. Typical examples: crated machinery, cast iron products, doors, transmissions. Higher classes cost more per pound because light, bulky freight consumes trailer space and damages more easily.
Measure the handling unit as it ships — palletized freight includes the pallet's dimensions and weight. Density-based estimate; the NMFC commodity listing (handling, stowability, liability) can override it.
Class 77.5 (denser) · Class 92.5 (lighter) · Full class chart & calculator
No — density sets the baseline since NMFTA's 2025 changes, but commodities with special handling, stowability or liability characteristics keep their own NMFC listings. Confirm with the NMFC or your carrier before booking.