Waterproof Bitumen Fiberboard Subfloor Panels from Japan
Medium density (0.35-0.5 g/cm³) fiberboard panels impregnated with bitumen to prevent moisture damage in subflooring applications. Classified under HTS 4411.94.00.30 for its specific impregnation and density profile. Essential for wet-area flooring in bathrooms and kitchens.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include water absorption test results (<10% per standards) supporting bitumen effectiveness
• Declare exact density to prevent reclassification to higher-duty density categories
• Comply with HUD standards if destined for manufactured housing