HDF Subfloor Underlayment Sheet from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include screw-holding strength test data for construction compliance
• Ensure no wax/paraffin additives beyond 3% binder limit per notes