4418.99.10.00—Builders' joinery and carpentry of wood, including cellular wood panels and assembled flooring panels; shingles and shakes, drilled or notched lumber studsGeneral
Free
Units
m3
Column 2
$1.70/m3
Special
—
HTS 4418.99.10.00 is the U.S. Harmonized Tariff Schedule classification for Builders' joinery and carpentry of wood, including cellular wood panels and assembled flooring panels; shingles and shakes, drilled or notched lumber studs. 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.
HTS 4418.99.10.00 is the U.S. Harmonized Tariff Schedule classification for Builders' joinery and carpentry of wood, including cellular wood panels and assembled flooring panels; shingles and shakes, drilled or notched lumber studs. It belongs to Chapter 44 of the HTSUS.
The general (Column 1) duty rate for HTS 4418.99.10.00 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 4418.99.10.00 is $1.70/m3. 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 4418.99.10.00 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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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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