Free tools built by warehouse operators, not software companies. Get freight classes, estimate storage costs, and calculate duties — in seconds.
Enter dimensions and weight to determine NMFC freight class
All 18 NMFC classes with density ranges and rate indices
| Class | Density (lbs/ft³) | Rate | Common Examples |
|---|---|---|---|
| 50 | 50+ | 1x | Shrink-wrapped pallets of bricks, cement, mortar, hardwood flooring, nuts & bolts |
| 55 | 35 – 50 | 1.1x | Bricks, cement, hardwood flooring, construction materials, cased goods |
| 60 | 30 – 35 | 1.2x | Car accessories & parts, steel cable, used tires, stone/glass articles |
| 65 | 22.5 – 30 | 1.3x | Car accessories & parts, bottled beverages, books in boxes, conveyors |
| 70 | 15 – 22.5 | 1.4x | Car accessories & parts, food items, automobile engines, metal castings |
| 77.5 | 13.5 – 15 | 1.55x | Tires, bathroom fixtures, garments, shirts/pants |
| 85 | 12 – 13.5 | 1.7x | Crated machinery, cast iron stoves, refrigerators, vending machines |
| 92.5 | 10.5 – 12 | 1.85x | Computers, monitors, refrigerators & freezers, test equipment |
| 100 | 9 – 10.5 | 2x | Boat covers, car covers, canvas, wine cases, caskets |
| 110 | 8 – 9 | 2.2x | Cabinets, framed artwork, table saw, metalworking |
| 125 | 7 – 8 | 2.5x | Small household appliances, vending machines, wooden furniture |
| 150 | 6 – 7 | 3x | Auto sheet metal parts, bookcases, furniture, workbenches |
| 175 | 5 – 6 | 3.5x | Clothing, couches, stuffed furniture, metal cabinets |
| 200 | 4 – 5 | 4x | Auto sheet metal parts, aircraft parts, aluminum tables/chairs, packaged mattresses |
| 250 | 3 – 4 | 5x | Bamboo furniture, mattresses & box springs, plasma TVs, engine hoods |
| 300 | 2 – 3 | 6x | Model boats, assembled chairs & tables, wood cabinets, rubber tires |
| 400 | 1 – 2 | 8x | Deer antlers, large stuffed animals, lightweight plastic fixtures |
| 500 | < 1 | 10x | Bags of gold dust, ping pong balls, live plants, empty pallets |
All 18 NMFC freight classes with density thresholds and typical commodities
| Class | Density (lbs/ft³) | Example Commodities | Rate Impact |
|---|---|---|---|
| 50 | ≥ 50 | Bricks, sand, cement, hardwood flooring | Lowest rates |
| 55 | 35–50 | Steel hardware, small appliances, books | Very low |
| 60 | 30–35 | Car parts, bottled beverages, motors | Low |
| 65 | 22.5–30 | Canned food, small machinery, fabricated steel | Below average |
| 70 | 15–22.5 | Tires, bottled beverages, packaged food | Average |
| 77.5 | 13.5–15 | Refrigerators, sheet metal, plastic film | Average |
| 85 | 12–13.5 | Computers, copiers, small electronics | Slightly above avg |
| 92.5 | 10.5–12 | Clothing, furniture parts, auto glass | Above average |
| 100 | 9–10.5 | Boat covers, computers, wine cases | High |
| 110 | 8–9 | Cabinets, wooden tables, small machinery | High |
| 125 | 7–8 | Small household appliances, auto parts | Very high |
| 150 | 6–7 | Mattresses, couches, furniture, flat-screen TVs | Very high |
| 175 | 5–6 | Clothing, sheet metal, large appliances | Very high |
| 200 | 4–5 | Rolled auto sheet metal, aluminum extrusions | Extremely high |
| 250 | 3–4 | Bamboo furniture, large pillows, foam | Extremely high |
| 300 | 2–3 | Wooden cabinets, large chandeliers | Premium |
| 400 | 1–2 | Deer antlers, ping pong balls | Premium |
| 500 | < 1 | Bags of gold dust, low-density foam | Maximum rate |
In-depth guides from warehouse operators
The House passed the Sanctioning Russia and Iran Act of 2026 on September 16 (262–159) after the Senate's 86–11 vote in August; the White House says the president will sign within days. It authorizes up to 500% tariffs on Russian goods and an additional 100% tariff on the top five buyers of Russian petroleum — a list that includes China, India and Turkey — for five years, with broad presidential waivers. What the authority does and does not do at the entry line, the stack math if it is ever pulled, why a 100% contingent tariff is the textbook bonded-warehouse case, and a checklist for the week of the September 24 Trump–Xi summit.
Bloomberg and Inside U.S. Trade report the Section 301 excess-capacity tariff announcement — expected to recommend 7.5% on Chinese goods — is delayed until after the September 24 Trump–Xi summit. Why 7.5% fits the 20% truce cap, the China stack before and after (40.5% → 48%, or 15.5% → 48% once exclusions lapse November 10), the four-day precedent for effective dates, why bonded inventory runs backwards, and a seven-step checklist for this week.
Proclamation 11052 takes effect December 4, 2026: minimum import prices ($21/kg polysilicon, $100/kg wafers, $0.22/W cells, $0.38/W modules) plus a 15% Section 232 tariff on ingots, wafers, cells and modules, stacked on Section 301 and AD/CVD. The MIP certification and its import-ban penalty, the stacking math on a real invoice, why December 4 runs backwards for bonded and FTZ inventory, the anti-stockpiling clause, and an eleven-week checklist.
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