Tongue-and-Groove Resin MDF Subfloor Underlay
Resin-impregnated MDF underlayment panels, not exceeding 5 mm in thickness, with interlocking tongue-and-groove edges for use as subfloor underlay. These panels provide a smooth, stable surface for flooring installations, with resin treatment improving moisture resistance. They are classified under tariff item 4411.12.00 as MDF of a thickness not exceeding 5 mm, as the underlayment use does not alter their fibreboard classification.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
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 the thickness exceeds 5 mm but does not exceed 9 mm
Thickness determines the MDF subheading.
If the panels are laminated with multiple wood layers
Laminated wood products fall under heading 44.12.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the panels are not part of a flooring system with other materials, which may affect classification
• Provide technical specifications showing MDF density and resin content
• Ensure the panels are not surface-treated with moisture barriers like foil, which could shift classification
Related Products under Tariff item 4411.12.00
12mm Baltic Birch MDF Panel
A 12mm thick medium density fiberboard panel made from birch wood fibers, with only minimal oil treatment to prevent moisture absorption. Although thicker than 5mm, this candidate is incorrectly listed; it does not belong under tariff item 4411.12.00, which is limited to MDF not exceeding 5mm thickness.
2.5mm Acacia MDF Sheet
An ultra-thin 2.5mm MDF sheet from acacia wood fibers, oil-treated solely for handling, ideal for model-making and crafts. Its thickness under 5mm and lack of surface covering qualify it under tariff item 4411.12.00.
3mm MDF Speaker Baffle Boards
Thin medium density fiberboard sheets at 3mm thickness cut to size for use as speaker cabinet baffles in audio equipment enclosures. Although cut to size, they remain unworked and fall under tariff item 4411.12.00 as MDF not exceeding 5mm thickness.
3mm Poplar MDF Sheet
A thin medium density fiberboard sheet from poplar wood fibers, exactly 3mm thick, oil-treated for handling stability but otherwise bare. Its thin, uncovered nature places it under tariff item 4411.12.00.
4mm Eucalyptus MDF Panel
An eucalyptus-sourced medium density fiberboard panel, 4mm thick, untreated beyond light oil application for anti-stick properties. Its thin profile and uncovered surface qualify it under tariff item 4411.12.00.
5mm Pine MDF Board
A medium density fiberboard board sourced from pine wood, 5mm thick maximum, featuring only oil treatment for surface protection without additional coverings. Its thickness and unworked state place it under tariff item 4411.12.00.