Tandom · Duty calculator
HTS 4409.10.10.80 is the U.S. Harmonized Tariff Schedule classification for Coniferous, wood siding, other. It's a 10-digit statistical line in Chapter 44: Wood and articles of wood; wood charcoal, Section IX: Wood and Articles of Wood; Wood Charcoal; Cork and Articles of Cork; Manufactures of Straw, of Esparto or of Other Plaiting Materials; Basketware and Wickerwork, used by U.S. Customs and Border Protection to determine the duty rate at entry. 1 Chapter 99 tariff modification currently stacks on top of the base rate, and 2 active AD/CVD orders flag this code.
New to HTS codes? Read our guide on how HTS classification works →
Chapter 99 overlays that stack on the base rate
| Code | Authority | Rate |
|---|---|---|
| 9903.53.01 | other | 10% |
Active orders that may apply to imports under this HTS code. HTS coverage is advisory — actual scope depends on each order's product description. Run the AD/CVD lookup → to check whether your specific shipment is in scope.
Past CBP decisions classifying real products under this HTS code. Useful precedent when classifying a similar product — each ruling shows how CBP interpreted the code for a specific case.
The tariff classification of interior wood siding panels from Sweden
The tariff classification of wood siding panels from Brazil
The tariff classification of ThermoWood® products from Canada
The tariff classification of wooden exterior “trim boards” from Canada.
The tariff classification of clapboard siding, profiled siding and landscaping tiles from Canada
Source: CBP CROSS (view all rulings on rulings.cbp.gov →)
HTS 4409.10.10.80 is the U.S. Harmonized Tariff Schedule classification for Coniferous, wood siding, other. It belongs to Chapter 44 of the HTSUS.
The general (Column 1) duty rate for HTS 4409.10.10.80 is Free. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
The Column 2 rate for HTS 4409.10.10.80 is 2.2¢/m2. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Cuba and North Korea).
Yes — HTS 4409.10.10.80 is covered by other provision 9903.53.01 (10%). Open the code page for the full overlay stack with effective dates and country scopes.
Yes — 2 AD/CVD orders flag this code: C-122-858 (CVD, Canada), A-122-857 (AD, Canada). Open the code page for deposit rates, scope determinations, and the linked case lookups.
Tandom guides relevant to this code
Where trade compliance APIs fit in a broker's filing pipeline: HTS classification, duty calculation, AD/CVD scope match, and post-summary corrections.
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How to read, order, and report Chapter 99 HTS codes alongside the base classification on a US entry summary in 2026. The full stacking ladder for brokers and compliance teams.
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A working guide to the inputs, the layers, and the math behind a US entry summary in 2026. Written for brokers, forwarders, and importer compliance teams.
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Drop the Tandom Duty Calculator API into a TMS, broker software, or in-house ERP. Code samples, the response shape, and ACE reporting order, in 2026.
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What changed April 6, 2026, what stayed the same, and how to file a steel, aluminum, or copper line in ACE without leaving duty exposure on the table.
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What the 178 active Section 301 exclusions cover, how to claim 9903.88.69 on an entry, and what changes when the November 10, 2026 deadline passes.
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