Most furniture ships LTL at freight class 100–250, and density decides where yours lands. An assembled sofa runs about 2–4 lb/ft³ and rates class 250 on the NMFC's density scale (under the old commodity provisions, couches rated 175 — many tariffs still quote it). The same sofa flat-packed into boxes hits 6–8 lb/ft³ and rides at class 125, roughly half the rate base. Since July 19, 2025, the NMFC classes most furniture by measured density, so the class is math you can run before the carrier's dimensioner does.
What freight class is furniture?
There is no single "furniture class." Household and office furniture items live mostly in the NMFC's 79000s–82000s, and since the 2025 overhaul the majority rate on the 13-tier density scale — measure the handling unit, compute lb/ft³, read off the class. What the commodity provisions still do is flag the exceptions: freight with special handling, stowability or liability characteristics. Here is where common furniture actually lands:
| Furniture, as tendered | Typical shipped density | Density-scale class | Legacy commodity class (NMFC item) |
|---|---|---|---|
| Sofa / couch, assembled | 2–4 lb/ft³ | 250 | 175 (80865) |
| Couch, back & arms removed | 4–8 lb/ft³ | 175–125 | 125 (80865, KD) |
| Wooden chairs, assembled | 1–4 lb/ft³ | 300–250 | 300 (80770) |
| Wooden chairs, knocked down & boxed | 6–10 lb/ft³ | 125–100 | 125 (80770, KD) |
| Flat-pack (RTA) desks & tables | 8–12 lb/ft³ | 100–92.5 | 100 (81250, KD desks) |
| Furniture completely knocked down, flat-stacked | 15+ lb/ft³ | 70 | 70 (79190) |
| Mattresses, boxed (innerspring) | 2–6 lb/ft³ | 250–175 | 200 (79550) |
Notice the pattern: the legacy commodity classes and the density scale mostly agree, because furniture's old classes were density in disguise. The difference is that density is now measured on your shipment as packed, not assumed from a description — which is exactly what the four-step class calculation is for.
Why does assembled furniture class so high?
Freight class prices four characteristics — density, handling, stowability, liability — and assembled furniture manages to fail all four at once. It's mostly air: a put-together sofa is a 60+ cubic-foot object weighing what a couple of boxed nightstands weigh. It's awkward: no flat top, so nothing stacks on it and it strands the cube above it in the trailer. And it's fragile in exactly the way claims departments hate — finished surfaces, fabric, glass. The NMFC's legacy furniture items say it plainly: wooden chairs set up rated class 300 while the same chairs knocked down rated 125, and a couch assembled rated 175 against 125 with the back and arms off. On a class-based tariff, the spread between 125 and 250 can more than double the linehaul before discounts — the mechanics are in how class drives your LTL rate.
Worked example: one sofa, three ways
Same 84-inch three-seat sofa, three ways of tendering it. Density is cubic feet first — length × width × height in inches ÷ 1,728 — then weight ÷ cube:
| Configuration | Dims (in) | Weight | Cube | Density | Class |
|---|---|---|---|---|---|
| Assembled, blanket-wrapped | 84 × 38 × 36 | 175 lb | 66.5 ft³ | 2.6 lb/ft³ | 250 |
| Flat-packed, two boxes | 2 × (52 × 33 × 14) | 195 lb | 27.8 ft³ | 7.0 lb/ft³ | 125 |
| Same two boxes on a 48×40 pallet | 52 × 40 × 33.5 | 235 lb | 40.3 ft³ | 5.8 lb/ft³ | 175 |
Walk through row one: 84 × 38 × 36 = 114,912 in³ ÷ 1,728 = 66.5 ft³; 175 lb ÷ 66.5 ft³ = 2.6 lb/ft³ — that's the "2 but less than 4" tier, class 250. Row two packs the same sofa into two flat cartons and lands at 7.0 lb/ft³, class 125.
Row three is the trap worth memorizing: palletizing the boxes raised the class back to 175. The pallet added 5.5 inches of height and 40 lb, and because the 52-inch cartons overhang the 48-inch pallet, the billed footprint grows to 52 × 40 — carriers measure the extreme dimensions of the handling unit. Air re-entered the shipment and density fell from 7.0 to 5.8 lb/ft³, across the class-125/175 breakpoint at 6. Before you shrink-wrap anything, run the unit through the pallet calculator and check what the pallet does to your density.
How do you get furniture into a lower class?
- Ship it knocked down whenever the product allows. Flat-pack is the single biggest lever in furniture freight — the difference between class 250 and class 125 on the same goods, a gap the NMFC has priced since the commodity-provision days.
- Squeeze the air out of the cartons. Density is weight ÷ cube, and the cube is whatever you present. Nesting parts, dropping box heights an inch, and consolidating two half-empty cartons into one all move real money. Sanity-check with the density calculator as you spec packaging.
- Do the pallet math both ways. Overhang bills at the extreme dimensions, and the pallet itself adds cube and weight. Dense flat-packs sometimes fare better floor-loaded — where your carrier's packaging rules allow it — while fragile assembled pieces usually need the pallet regardless. Measure, don't guess.
- Declare the real class and NMFC item. LTL terminals run dimensioners now; under-declared furniture gets reclassified and re-billed with inspection fees on top. One 2026 broker worked example: a 500-lb shipment over 800 miles priced $285 at class 70 versus $425 at class 100 — and $625 once reclass fees hit the invoice.
- Protect the class you claimed. Corner protectors, edge boards and a "do not stack" cone don't change density, but they keep a damage claim from erasing everything the class work saved — furniture's liability profile is why it classes high in the first place.
Furniture is a liability commodity — plan for damage
Fragile, finished, theft-prone goods class higher partly because they're bigger liability risks, and furniture is the textbook case. Carrier liability pays by the pound — commonly $0.50–$25/lb for new goods and as little as $0.10/lb for used — so a damaged $3,000 sofa that weighs 175 lb can recover very little on liability alone. Industry packaging guides credit full blanket-wrapping and rigid corner protection with cutting furniture claim rates by roughly 70% versus loose-handled pieces. Photograph the wrapped unit at pickup, note damage on the delivery receipt before signing, and if the value-per-pound math looks thin, price real coverage using the freight insurance guide.
Did the 2025 NMFC changes hit furniture?
Yes. Docket 2025-1, effective July 19, 2025, consolidated roughly 2,000 commodity listings across about 100 commodity groups — furniture among them — onto the standardized 13-tier density scale, while keeping distinct treatment for knocked-down versus set-up freight and adding flags for special handling, stowability and liability. Follow-on dockets in late 2025 and 2026 continued the cleanup, cancelling and consolidating more legacy furniture items. Practical upshot: the printed class from an old tariff sheet may no longer be the rated class. Measure the shipment as packed, compute density, and check the current item — the full story is in the 2025 NMFC changes, in plain English.