HTS heading 3918 · Chapter 39, Plastics and articles of plastic
US imports of Floor coverings of plastics
Floor coverings of plastics, whether or not self-adhesive, in rolls or in the form of tiles; wall or ceiling coverings of plastics, as defined in note 9 to this chapter
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
US imports under HTS 3918 at a glance
Between March and July 2026, US importers entered $1.51 billion of floor coverings of plastics under HTS heading 3918, from 43 of the 55 origin countries covered here and across 15 ten-digit tariff lines — roughly $303 million a month of customs value under a single four-digit heading.
The heading belongs to chapter 39, plastics and articles of plastic. Classification disputes in this range usually turn on the six-digit subheading, which is where the rates start to diverge.
Top origin countries by share of HTS 3918
Origin countries: value, share and duty paid
| Origin | Import value | Share | Dutiable share | Effective duty | Duty per $100 | Detail |
|---|---|---|---|---|---|---|
| Vietnam | $678 million | 44.7% | 100% | 15.14% | $15.14 | Duty on 3918.10.10 Vietnam lane |
| Thailand | $280 million | 18.5% | 100% | 14.90% | $14.90 | Duty on 3918.10.10 Thailand lane |
| South Korea | $213 million | 14.1% | 97.9% | 10.23% | $10.01 | Duty on 3918.10.10 |
| Mexico | $77.4 million | 5.1% | 0.4% | 11.25% | $0.04 | |
| China | $70.3 million | 4.6% | 96.5% | 39.77% | $38.38 | Duty on 3918.10.10 China lane |
| Canada | $33.9 million | 2.2% | 5.6% | 11.52% | $0.65 | |
| Malaysia | $25.1 million | 1.6% | 100% | 15.02% | $15.02 | Duty on 3918.10.10 |
| France | $23.1 million | 1.5% | 99.6% | 14.98% | $14.92 | Duty on 3918.10.20 |
| United Kingdom | $22.1 million | 1.5% | 99.8% | 14.72% | $14.69 | Duty on 3918.10.10 |
| Taiwan | $19.9 million | 1.3% | 100% | 14.54% | $14.54 | Duty on 3918.10.10 |
| Turkey | $13.7 million | 0.9% | 100% | 15.22% | $15.22 | Duty on 3918.10.10 |
| Germany | $11.0 million | 0.7% | 99.9% | 15.07% | $15.05 | Duty on 3918.90.10 |
| Japan | $10.3 million | 0.7% | 100% | 14.75% | $14.75 | Duty on 3918.10.10 |
| Sweden | $7.5 million | 0.5% | 100% | 14.18% | $14.18 | Duty on 3918.10.20 |
| India | $6.3 million | 0.4% | 100% | 15.11% | $15.11 | Duty on 3918.10.10 India lane |
Who exports floor coverings of plastics to the United States
Vietnam, Thailand and South Korea together account for 77.3% of the heading. Vietnam leads with $678 million (44.7%), ahead of Thailand at 18.5% and South Korea at 14.1%. Concentrated but not captive: alternatives exist, and buyers who qualify a second origin early keep some leverage when duties move.
Mexico and Canada sit near the top of the table, and the duty numbers reflect it: Mexico entered 99.6% of its value free of duty and Canada entered 94.4% of its value free of duty. Cargo that qualifies under USMCA and is claimed correctly at entry pays nothing; cargo that does not qualify, or that is never claimed, pays the ordinary rate. The certification is the whole difference.
What importers actually paid in duty
Almost everything under this heading is dutiable: 92.3% of entered value carried duty, and CBP collected $217 million over the five months. The effective rate on dutiable value was 15.5%, which works out to $14.31 of duty per $100 of goods. There is no meaningful duty-free channel here — classification and origin are the only levers.
The spread between origins is real. Among origins with at least 2% of the heading, China paid the most duty relative to value — $38.38 per $100 — while Mexico paid $0.04. On a $250,000 purchase order that gap is about $96,000 in duty alone, which is worth pricing into a sourcing decision rather than discovering on the entry summary.
10-digit tariff lines under HTS 3918
| HTS code | Description | Import value | Share | Duty per $100 | Largest origin |
|---|---|---|---|---|---|
| 3918.10.10.20 | Vinyl tile consisting of a rigid solid polymer core | $722 million | 47.7% | $14.15 | Vietnam |
| 3918.10.10.40 | Other | $374 million | 24.7% | $13.69 | South Korea |
| 3918.10.10.30 | Vinyl tile consisting of a rigid expanded polymer core of a kind described in statistical note 2 to this chapter | $267 million | 17.6% | $14.83 | Thailand |
| 3918.10.20.00 | — | $84.0 million | 5.5% | $13.61 | Canada |
| 3918.90.10.00 | — | $42.7 million | 2.8% | $16.51 | China |
| 3918.10.50.00 | — | $16.4 million | 1.1% | $19.11 | China |
| 3918.90.50.00 | — | $6.2 million | 0.4% | $27.89 | China |
| 3918.10.31.50 | Other | $1.4 million | 0.1% | $16.54 | China |
| 3918.10.32.50 | — | $444,000 | 0% | $17.74 | Italy |
| 3918.10.40.10 | — | $247,000 | 0% | $15.95 | United Kingdom |
| 3918.90.30.00 | — | $217,000 | 0% | $25.69 | China |
| 3918.10.40.50 | — | $176,000 | 0% | $18.34 | Turkey |
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
The 10-digit lines under heading 3918
15 ten-digit lines carried trade under this heading in the period. The largest, 3918.10.10.20 (vinyl tile consisting of a rigid solid polymer core), took 47.7% of the heading at $722 million. 3918.10.10.40, 3918.10.10.30 and 3918.10.20.00 follow. Rates diverge between those lines, so the classification your broker files is worth checking against the goods rather than carried over from the last entry.
What the duty stack looks like
The rate on an entry is not one number. It is a stack: the general (column 1) rate for the 10-digit line, less any trade-agreement preference the goods qualify for, plus whatever additional duties apply to that product and origin, all applied to the customs value declared. The $14.31 per $100 above is what that stack averaged across every entry in this heading — a benchmark, not a quote.
For the origins carrying the most volume, the per-country breakdowns go a level deeper: Vietnam (3918.10.10), Thailand (3918.10.10) and South Korea (3918.10.10). To price a specific shipment, put your 10-digit code and country of origin into the tariff simulator.
What this means for your next shipment
The numbers above are a starting point, not the answer for a specific shipment: the rate depends on the exact 10-digit line, the origin, and any trade-agreement claim you can substantiate. Airlift USA arranges the ocean and air movement and coordinates classification and entry filing through our licensed broker network.
For the operational side rather than the tariff side, see the Rubber & Plastic Commodities guide for how this cargo moves, the Vietnam to USA lane for transit times and ports and the heading index to compare against the rest of chapter 39.
Price a shipment under HTS 3918
Airlift USA has moved ocean and air freight into the United States since 1999 and coordinates HTS classification, ISF and entry filing through our licensed broker network.
Methodology
Figures come from the U.S. Census Bureau's international trade statistics for imports for consumption — the customs value of goods entered into US commerce, not shipments in transit or goods held in bonded warehouses. The period is March–July 2026 (5 months of data), and coverage is limited to 55 major origin countries, so totals here are lower than published US-wide totals for the same heading.
Three quantities are additive and everything else is derived from them: entered customs value, dutiable value and calculated duty. Effective duty is calculated duty divided by dutiable value — the rate CBP actually applied to the part of the trade that was dutiable. Dutiable share is dutiable value divided by entered value; below 20% it means the trade entered mostly free, under a trade agreement or a duty-free provision. Duty per $100 spreads calculated duty across all entered value, which is the figure comparable between origins.
Chapter 98 and chapter 99 are excluded: those are special classification and temporary-measure provisions rather than product headings. Heading and tariff-line descriptions are the current HTS text. Values are historical and reflect duty as calculated at the time of entry; they are not a quote and not a prediction of the rate on a future shipment.
Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value. Census data is a work of the US government and is in the public domain.
Frequently asked questions
Which countries export the most floor coverings of plastics to the United States?
Vietnam is the largest origin under HTS heading 3918, with $678 million entered between March and July 2026, or 44.7% of the heading. Thailand follows at 18.5% and South Korea at 14.1%. Figures cover the 55 major origin countries in this dataset. Source: U.S. Census Bureau, USA Trade Online / International Trade API, imports for consumption, March–July 2026; effective duty = calculated duty ÷ dutiable value.
How much import duty is paid on floor coverings of plastics under HTS 3918?
Across all origins, 92.3% of the entered value was dutiable and CBP calculated $217 million of duty over the five months — an effective 15.5% on dutiable value, or about $14.31 per $100 of goods across the whole heading. Your own rate depends on the exact 10-digit line and country of origin.
Which HTS codes fall under heading 3918?
Heading 3918 covers floor coverings of plastics, whether or not self-adhesive, in rolls or in the form of tiles; wall or ceiling coverings of plastics, as defined in note 9 to this chapter. 15 ten-digit lines recorded imports in this period; the largest by value were 3918.10.10.20, 3918.10.10.40, 3918.10.10.30 and 3918.10.20.00. Duty rates differ between those lines, so the 10-digit classification matters more than the heading.
Which origin pays the lowest duty on floor coverings of plastics?
Among origins with at least 2% of the heading, Mexico paid the least duty relative to entered value — about $0.04 per $100 of goods, with 99.6% of its value entering free. Duty is only one part of landed cost, and a claim has to be substantiated at entry to be allowed.
How do I check the duty on my own shipment?
Use the Airlift USA tariff simulator with your 10-digit HTS code and country of origin to see the duty stack that applies today, then confirm the classification before you file. Airlift USA coordinates classification and entry filing through our licensed broker network and can review the code against your product specification.