Exterior Grade OSB Siding Panels from Canada
OSB panels formulated for exterior siding applications with enhanced moisture and weather resistance. Oriented strand construction provides dimensional stability superior to standard plywood. HTS 4410.12.00 classification for basic OSB without decorative overlays.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide water absorption/thickness swell test results per ASTM D1037 proving exterior durability claims
• Distinguish from overlaid OSB by noting lack of surface treatments in commercial invoice descriptions
• Formaldehyde emission testing mandatory - ensure CARB Phase 2 or TSCA Title VI compliance certification