Pre-notched Fire-Rated Studs from China
2x6 Douglas fir lumber studs pre-notched for wiring with intumescent sealant channels for 1-hour fire-rated wall assemblies. HTS 4418.99.10.00 applies as these are drilled/notched specifically for builders' carpentry in fire-resistant construction. The notches maintain structural integrity while meeting code requirements.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Obtain fire-rating test documentation from manufacturer for customs verification
• Ensure kiln-dried certification (KD19) for dimensional stability claims
• Avoid bundling with metal components to prevent set classification issues