Underlayment MDF 6.35mm from Mexico
Thin MDF sheets for flooring underlayment, 6.35mm thickness with tongue-and-groove edges. Medium density fiberboard per HTS 4411.13.90.90 'Other'. Provides soundproofing and leveling.
Duty Rate — Mexico → United States
13.9%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include impact insulation class (IIC) ratings for flooring applications
• Protect edges during shipping to maintain tongue-groove integrity for classification
• Distinguish from OSB (4412.33) via fiber uniformity lab reports