Commodity guide · machinery
Crated machinery typically rates class 85 (12 - 15 pcf); dense compact machines can rate class 65 - 70, large light frames higher.
Machinery classing is dominated by the crate. A compact machine bolted to a skid can run 20+ pcf and rate class 65 - 70. Put the same machine in a full lumber crate with clearance on all sides and the density can halve.
Worked example. A crated machine on a skid: 60 × 48 × 50 in, 1400 lb. That is 83.3 cu ft and 1400 lb → 16.80 pcf → class 70. Run your own numbers →
Many machinery listings moved to density rating under Docket 2025-1, and machinery is also where liability and handling sub-factors most often apply - very high-value or awkward machines can class above their density. Confirm the NMFC item for anything expensive, self-propelled or fragile.
Related: the full class chart · density calculator · how NMFC codes work.