HTS heading 3925 · Chapter 39, Plastics and articles of plastic
US imports of Builders' ware of plastics
Builders' ware of plastics, not elsewhere specified or included
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 3925 at a glance
Between March and July 2026, US importers entered $1.11 billion of builders' ware of plastics under HTS heading 3925, from 50 of the 55 origin countries covered here and across 7 ten-digit tariff lines — roughly $221 million a month of customs value under a single four-digit heading.
Chapter 39 covers plastics and articles of plastic; heading 3925 is one of its larger entries by value, which is why the duty treatment below is worth checking line by line.
Top origin countries by share of HTS 3925
Origin countries: value, share and duty paid
| Origin | Import value | Share | Dutiable share | Effective duty | Duty per $100 | Detail |
|---|---|---|---|---|---|---|
| Canada | $396 million | 35.8% | 0.6% | 20.35% | $0.13 | |
| Mexico | $196 million | 17.7% | 4.8% | 14.02% | $0.67 | |
| China | $120 million | 10.9% | 99.8% | 30.53% | $30.46 | Duty on 3925.90.00 China lane |
| Cambodia | $108 million | 9.7% | 100% | 13.16% | $13.16 | Duty on 3925.30.10 Cambodia lane |
| Vietnam | $87.4 million | 7.9% | 99.9% | 13.58% | $13.57 | Duty on 3925.30.10 Vietnam lane |
| Poland | $27.4 million | 2.5% | 99.5% | 14.83% | $14.75 | Duty on 3925.20.00 |
| Germany | $23.3 million | 2.1% | 100% | 14.91% | $14.91 | Duty on 3925.90.00 |
| Taiwan | $23.3 million | 2.1% | 100% | 14.82% | $14.82 | Duty on 3925.20.00 |
| United Kingdom | $21.1 million | 1.9% | 97.9% | 12.15% | $11.89 | Duty on 3925.20.00 |
| India | $12.7 million | 1.1% | 100% | 15.19% | $15.19 | Duty on 3925.90.00 India lane |
| Belgium | $12.2 million | 1.1% | 100% | 14.54% | $14.54 | Duty on 3925.90.00 Belgium lane |
| Malaysia | $11.5 million | 1% | 100% | 11.81% | $11.81 | Duty on 3925.20.00 |
| Thailand | $9.8 million | 0.9% | 100% | 15.26% | $15.26 | Duty on 3925.90.00 Thailand lane |
| Italy | $7.7 million | 0.7% | 100% | 15.06% | $15.06 | Duty on 3925.90.00 Italy lane |
| South Korea | $6.2 million | 0.6% | 96.3% | 10.43% | $10.04 | Duty on 3925.20.00 |
Who exports builders' ware of plastics to the United States
Canada is the largest origin with $396 million, or 35.8% of the heading, with Mexico at 17.7% and China at 10.9%. The top three take 64.4% between them — enough concentration to matter when one origin's duty treatment changes, but not so much that a buyer has no alternative to qualify.
Canada and Mexico sit near the top of the table, and the duty numbers reflect it: Canada entered 99.4% of its value free of duty and Mexico entered 95.2% 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
Duty treatment is split. 47.4% of the entered value was dutiable and the rest came in free, usually under a trade agreement or a duty-free provision in the tariff schedule. CBP collected $91.7 million in all, an effective 17.5% on the dutiable value and $8.30 per $100 of goods once the free entries are counted.
The spread between origins is real. Among origins with at least 2% of the heading, China paid the most duty relative to value — $30.46 per $100 — while Canada paid $0.13. On a $250,000 purchase order that gap is about $76,000 in duty alone, which is worth pricing into a sourcing decision rather than discovering on the entry summary.
10-digit tariff lines under HTS 3925
| HTS code | Description | Import value | Share | Duty per $100 | Largest origin |
|---|---|---|---|---|---|
| 3925.90.00.00 | Other | $508 million | 46% | $7.44 | Canada |
| 3925.30.10.00 | — | $273 million | 24.7% | $9.13 | Cambodia |
| 3925.20.00.10 | Doors and door frames | $110 million | 9.9% | $10.42 | Canada |
| 3925.20.00.20 | Windows and window frames | $86.0 million | 7.8% | $8.15 | Canada |
| 3925.10.00.00 | Reservoirs, tanks, vats and similar containers, of a capacity exceeding 300 liters | $48.9 million | 4.4% | $3.66 | Canada |
| 3925.30.50.00 | — | $46.0 million | 4.2% | $9.32 | Mexico |
| 3925.20.00.91 | Other | $33.6 million | 3% | $13.28 | China |
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 3925
7 ten-digit lines carried trade under this heading in the period. The largest, 3925.90.00.00 (other), took 46% of the heading at $508 million. 3925.30.10.00, 3925.20.00.10 and 3925.20.00.20 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 $8.30 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: China (3925.90.00), Cambodia (3925.30.10) and Vietnam (3925.30.10). 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 practical sequence is: confirm the 10-digit line against the actual goods, confirm origin under the substantial-transformation rules rather than the shipping address, then price the duty on that pair. Airlift USA moves the cargo and coordinates classification and entry filing through our licensed broker network, so the code agreed at booking is the one on the entry.
For the operational side rather than the tariff side, see the Rubber & Plastic Commodities guide for how this cargo moves, the China 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 3925
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 builders' ware of plastics to the United States?
Canada is the largest origin under HTS heading 3925, with $396 million entered between March and July 2026, or 35.8% of the heading. Mexico follows at 17.7% and China at 10.9%. 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 builders' ware of plastics under HTS 3925?
Across all origins, 47.4% of the entered value was dutiable and CBP calculated $91.7 million of duty over the five months — an effective 17.5% on dutiable value, or about $8.30 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 3925?
Heading 3925 covers builders' ware of plastics, not elsewhere specified or included. 7 ten-digit lines recorded imports in this period; the largest by value were 3925.90.00.00, 3925.30.10.00, 3925.20.00.10 and 3925.20.00.20. Duty rates differ between those lines, so the 10-digit classification matters more than the heading.
Which origin pays the lowest duty on builders' ware of plastics?
Among origins with at least 2% of the heading, Canada paid the least duty relative to entered value — about $0.13 per $100 of goods, with 99.4% 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.