Standard International Trade Classification
U.S. exports of Wood in the Rough or Roughly Squared, Treated with Paint, Stains or Preservatives (SITC 24730) totaled $4.1M in August 2026.
Importers of Wood in the Rough or Roughly Squared, Treated with Paint, Stains or Preservatives paid $145K in duties in August 2026, an average duty rate of 9.30% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Wood in the Rough or Roughly Squared, Treated with Paint, Stains or Preservatives imports of $1.6M in August 2026 ran 36% below the year-to-date monthly average of $2.4M.
Last updated: August 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.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
30 import shipments a month
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.
Basic heading 93 of 239 in section 2
Basic heading 24730 · $4.1M of $7.8B
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Exports · August 2026
destination
Canada and Peru together take 62% of it.
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$1.6MYoY · free account
Exports
$4.1MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $28.6M of Wood in the Rough or Roughly Squared, Treated with Paint, Stains or Preservatives and exported $49.7M.
Through August 2026. Source: U.S. Census Bureau.