HDF Subfloor Underlayment Sheet from Japan
High-density fiberboard sheets for subfloor underlayment in construction, >0.8 g/cm³ density, oil-treated surface only for water resistance. Stabilizes flooring installations. Classified 4411.92.20.00 as other untreated HDF.
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 screw-holding strength test data for construction compliance
• Ensure no wax/paraffin additives beyond 3% binder limit per notes