T&G MDF Roof Lining Boards from Canada
Medium density fiberboard boards exceeding 9mm with tongue-and-groove profiling for interior roof lining in timber-framed structures. HTS 4411.14.3000 applies due to thickness, continuous edge treatment, and explicit building construction dedication.
Duty Rate — Canada → United States
10%
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
Import Tips
• Specify 'roof lining' application in end-use statement to meet dedication requirement
• Fungal resistance treatment documentation required for roof applications in humid climates
• Verify resin content <20% organic substances per fiberboard definition