Hardwood MDF Underlayment Sheet
Medium density fiberboard sheet made from hardwood fibers, density 0.7 g/cm³, used as flooring underlayment or subflooring substrate. HTS 4411.93.90 applies to this 'other' category fiberboard, bonded with resins but not profiled or specialized. Tongue-and-groove edges optional but not qualifying as joinery.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If assembled into finished flooring panels for retail
Completed fiberboard flooring for parquet or similar classified as builders' joinery in 4418
If specifically for laundry boards
Fiberboard designed as laundry stiffeners excluded to subheading 4411.93.40
If die-cut into specific paperboard-mimicking shapes
Molded or die-cut fiberboard imitating paper products may shift to Chapter 48
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Import Tips & Compliance
• Fumigation certificate required under ISPM 15 if exceeding de minimis; confirm no tropical wood species to avoid Lacey Act declarations; measure moisture content (under 19%) for customs valuation
Related Products under HTS 4411.93.90
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MDF Shelf Board 18mm
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MDF Wall Paneling Board
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Recycled Wood Fiberboard Core 12mm
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MDF Router Blank Sheet
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Poplar MDF Furniture Blank
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