Douglas Fir Lumber 2x4 S4S from Mexico
S4S (surfaced four sides) Douglas fir lumber measuring 2 inches by 4 inches by various lengths, planed and sanded for smooth finish. Classified under HTS 4407.19.0057 as sawn coniferous wood of Douglas-fir, thickness exceeding 6mm, not chemically treated. Used primarily for framing in residential construction.
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
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Obtain ISPM 15 compliant fumigation certificate if kiln-dried; verify 'not treated' status matches chemical-free requirement
• Provide precise species documentation proving Douglas-fir (Pseudotsuga menziesii) origin to avoid reclassification
• Measure actual thickness post-surfacing to confirm exceeds 6mm; common pitfall is kiln shrinkage below threshold