50Class
≥ 50 PCFRock-bottom class: extremely heavy, tightly packed commodities that move in bulk.
Typical fits
- Steel rebar bundles
- Sand or gravel (supersacks)
Band: dense
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Density-based classification lookup table and interactive quick reference.
Every LTL shipment is assigned one of 18 classes from 50 to 500. Class 50 is the cheapest (dense, easy to pack); class 500 is the most expensive (bulky or fragile). This chart shows what each class typically holds — and why.
The examples below are typical fits, not rules. Real classification can override density for hazardous materials, high-value goods, awkward shapes, and specific NMFC item numbers. Use this chart to build intuition — verify against the carrier's tariff before you book.
Density = weight (lb) ÷ cube (ft³). Enter details to see the matching density band.
Rock-bottom class: extremely heavy, tightly packed commodities that move in bulk.
Solid materials with weight to spare — stackable and space-efficient.
Liquids and dense metal parts — heavy per cubic foot, still easy to move.
Sturdy boxed goods that fill their crate without wasted air.
Heavy machinery components — the standard "solid pallet" band.
Rubber, textiles, and mid-weight parts — the low edge of the medium band.
Heavier boxed items you can still handle without special equipment.
Compact appliances and business machines — mostly solid, a little air inside.
The "everyday consumer goods" band — the most common class in a mixed truck.
Furniture and finished goods with real air pockets inside the package.
Hollow-body machines and display gear — packaging carries a lot of empty space.
Bulkier assembled furniture — the low-density band begins here.
Soft goods and hollow-body items with lots of air per pound.
Large, thin-material items — screens and panels take up a whole pallet.
Very bulky assemblies — rolls and cushions taking a whole pallet on their own.
Big, mostly empty freight — assembled and hard to stack without damage.
Ultra-light or oddly shaped items — nearly all volume, almost no weight.
The ceiling. Effectively no weight — the shipment is priced entirely on the space it occupies.