Commodity guide · refrigerators
Boxed household refrigerators typically measure 5 - 8 pcf and rate class 125, sometimes class 175 for large French-door units.
A refrigerator is an insulated shell around empty space, so its density is poor: a typical boxed unit runs 5 - 8 pcf, which is class 125, and oversized low-density models can slip to class 175.
Worked example. A boxed french-door refrigerator on a pallet: 36 × 34 × 70 in, 310 lb. That is 49.6 cu ft and 310 lb → 6.25 pcf → class 125. Run your own numbers →
Ship upright (compressor oil migrates if laid down), in the factory carton where possible, and measure the real boxed height including the pallet - the pallet inches are part of the cube the carrier rates.
Related: the full class chart · density calculator · how NMFC codes work.