Exposure-1 Rated OSB Sheathing from China
Oriented strand board rated Exposure-1 for limited water exposure during construction, sanded surface, typically 7/16-inch for sheathing. HTS 4410.12.0010 covers this sanded wood OSB bound with resins, suitable for siding and structural panels. Wax overlay provides temporary protection.
Duty Rate — China → United States
37.5%
Rate breakdown
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Document Exposure-1 rating with test data showing ≤10% thickness swell after water exposure
• Ensure resin type (PF or UF) declared for TSCA compliance
• Label panels clearly with grade stamps visible for customs inspection