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SITCSection 2
U.S. imports of wood in the rough or roughly squared, treated with paint, stains or preservatives (SITC 24730) totaled $2.4M in April 2026, traded with 7 countries.
Importers of Wood in the Rough or Roughly Squared, Treated with Paint, Stains or Preservatives paid $227K in duties in April 2026 — an effective duty rate of 9.7% on $2.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Wood in the Rough or Roughly Squared, Treated with Paint, Stains or Preservatives imports of $2.4M in April 2026 ran 18% below the year-to-date monthly average of $2.9M.
Last updated: April 2026 dataRough or roughly squared timber that has been treated with paint, stains, creosote, or other preservative systems occupies a distinct classification from untreated rough wood, reflecting the value added by the treatment process. Preservative-treated wood intended for ground contact or marine use — such as creosote-treated railway ties or CCA-treated utility poles — may be subject to EPA pesticide registration requirements for the treating chemical, since wood preservatives are regulated as pesticides under FIFRA. Importers should confirm that the specific preservative system used in the exporting country is registered for the intended end use under US EPA rules.
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Tariff schedules distinguish treated from untreated rough wood because the preservative treatment constitutes a processing step that alters the product's commercial character and end-use suitability. The treatment also introduces regulatory considerations — particularly EPA oversight of the preservative chemical — that do not apply to untreated timber.
Wood preservatives such as creosote, pentachlorophenol, and inorganic arsenicals are regulated as pesticides under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). Treated wood products may only be imported if the preservative used is registered with the EPA for the intended application. Importers should verify registration status with the EPA and consult a licensed customs broker or regulatory counsel before importing treated timber from new sources.
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Monthly import values over time