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HSChapter 44
U.S. imports of medium density fiberboard (mdf), thickness exceeding 9 mm (HS 441114) totaled $58.1M in April 2026, traded with 45 countries.
Importers of Medium Density Fiberboard (MDF), Thickness Exceeding 9 mm paid $4.8M in duties in April 2026 — an effective duty rate of 13% on $36.0M in dutiable value, based on actual customs collections rather than the published tariff schedule. Medium Density Fiberboard (MDF), Thickness Exceeding 9 mm imports of $58.1M in April 2026 ran 12% above the year-to-date monthly average of $51.8M.
Last updated: April 2026 dataThick MDF panels above 9 mm are the standard substrate for kitchen cabinet carcasses, furniture panels, and architectural millwork, where dimensional stability and screw-holding strength are primary requirements. Canada and Chile are the top US suppliers in this thickness tier, with Vietnam and China also contributing meaningfully to import volumes. The heading's seven 10-digit lines—including mechanically worked or surface-covered panels (4411141000), laminated tongue-and-groove (4411142000), ligneous tongue-and-groove (4411143000), non-surface-covered excluding oil (4411146000), ligneous mechanically worked (4411148000), standard wood molding (4411149010), and NESOI (4411149090)—require careful classification based on whether the panel has been profiled, coated, or left as a flat substrate. TSCA Title VI formaldehyde emission compliance remains a mandatory entry requirement for resin-bonded panels regardless of thickness.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
A primer coat applied uniformly to the panel surface is generally considered a surface covering for HTS classification purposes, which would direct the product toward the surface-covered lines rather than the not-surface-covered lines. Importers should review CBP rulings on the specific primer type and consult a licensed customs broker, as the distinction affects the applicable duty rate.
Chile has developed a large-scale plantation forestry sector based on radiata pine, which produces a consistent, fine-fiber furnish well-suited to MDF manufacturing. Its geographic position on the Pacific coast also supports efficient container shipping to US West Coast ports, making it competitive for thick-panel commodity grades.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 4411149010 | MDF, STANDARD WOOD MOLDING, EXCEEDING 9MM | $17.7M | 10.53% | $1.2M |
| 4411142000 | LAMINATED BOARDS TONGUED, GROOVED, MDF, GT 9 MM | $13.0M | 15.76% | $1.9M |
| 4411149090 | MDF OF A THICKNESS EXCEEDING 9MM, NESOI | $12.5M | 14.87% | $1.1M |
| 4411141000 | MED DENSY FIBRBD GT 9MM THICK MECH WRKD/SURF COVR | $12.4M | 10.69% | $322K |
| 4411143000 | MDF LIGNEOUS TONGUE GROOVE, EXCEEDING 9MM | $1.8M | 13.35% | $197K |
| 4411146000 | MED DENST FBRBRD GT 9MM NT SURF CVRD EX OIL | $725K | 10.00% | $57K |
MDF, STANDARD WOOD MOLDING, EXCEEDING 9MM
LAMINATED BOARDS TONGUED, GROOVED, MDF, GT 9 MM
MDF OF A THICKNESS EXCEEDING 9MM, NESOI
MED DENSY FIBRBD GT 9MM THICK MECH WRKD/SURF COVR
MDF LIGNEOUS TONGUE GROOVE, EXCEEDING 9MM
MED DENST FBRBRD GT 9MM NT SURF CVRD EX OIL
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 4411148000 | FIBERBD LIGNEOUS,MDF, OV 9MM THICK, MECHANICL WK | $3.2M |
| 4411141000 | MED DENSY FIBRBD GT 9MM THICK MECH WRKD/SURF COVR | $1.4M |
FIBERBD LIGNEOUS,MDF, OV 9MM THICK, MECHANICL WK
10.1K m3
MED DENSY FIBRBD GT 9MM THICK MECH WRKD/SURF COVR
4.6K m3
MIX SPF WOOD SAWN/CHIP LENGTHW,SLICED/PEEL,GT 6MM
HS 440713
OTHER ARTICLES OF WOOD, NESOI
HS 442199
ORIENTED STRAND BOARD (OSB), OF WOOD
HS 441012
PLYWD/ETC,NES,GT-1 OUT PLY NONCNF SPECES IN SUBHD
HS 441233
BUILDERS' JOINERY AND CARPENTRY OF WOOD, NESOI
HS 441899
OTHER CONIF WOOD, SAWN/CHIPED LENTGW, THKNS GT 6MM
HS 440719
| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $10.3M | $235K | -$10.1M |
| Texas | $6.7M | $36K | -$6.7M |
| Georgia | $6.7M | $34K | -$6.7M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| SAULT STE MARIE, MI | $5.5M | $27K | -$5.5M |
| LOS ANGELES, CA | $5.6M | -- | -$5.6M |
| SAVANNAH, GA | $5.4M | -- | -$5.4M |