</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Creosote-Treated Pine Fence Post from Mexico

Rough-cut pine fence posts treated with creosote preservative to resist rot and insects, typically measuring 4x4 inches by 8 feet. Classified under HTS 4403.11.0040 as coniferous wood in the rough, treated with preservatives, specifically for fence posts. The rough-squared state and treatment distinguish it from finished lumber.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.76.0110%Softwood timber and lumber products provided for in subdivision (b) of U.S. note 37 of this subchapter
9903.03.060%Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter

Import Tips

Verify treatment certification (e.g

AWPA standards) and include phytosanitary certificates to meet ISPM 15 fumigation requirements

Declare exact dimensions and treatment type on entry docs; rough-squared posts over 4x4x8ft may trigger quota checks

Avoid common pitfall of classifying as finished posts (4406); measure moisture content to confirm 'in the rough' status