Harmonized System
U.S. imports of Medium Density Fiberboard (MDF), Thickness Exceeding 9 mm (HS 441114) totaled $61.2M in August 2026, imported from 49 countries.
Importers of Medium Density Fiberboard (MDF), Thickness Exceeding 9 mm paid $7.0M in duties in August 2026, an average duty rate of 11.46% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 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.
4.6K import shipments a month
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.
Subheading 1 of 6 in heading 4411
Subheading 441114 · $61.2M of $100.1M
Trade Directory
List your company under HS 441114 — Medium Density Fiberboard (MDF), Thickness Exceeding 9 mm, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 4411149010 | MDF, Standard Wood Molding, Exceeding 9mm | $18.7M | 7.95% | 60.24% | $1.5M |
| 4411149090 | MDF of A Thickness Exceeding 9mm, NESOI | $14.2M | 12.87% | 70.86% | $1.8M |
| 4411142000 | Laminated Boards Tongued, Grooved, MDF, Gt 9 Mm | $13.7M | 19.77% | 95.34% | $2.7M |
| 4411141000 | Med Densy Fibrbd Gt 9mm Thick Mech Wrkd/Surf Covr | $12.4M | 4.86% | 29.21% | $602K |
| 4411143000 | MDF Ligneous Tongue Groove, Exceeding 9mm | $1.9M | 18.97% | 85.35% | $357K |
| 4411146000 | Med Denst Fbrbrd Gt 9mm Nt Surf Cvrd Ex Oil | $304K | 8.87% | 70.96% | $27K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 4411148000 | Fiberbd Ligneous, MDF, Ov 9mm Thick, Mechanicl Wk | $3.6M |
| 4411141000 | Med Densy Fibrbd Gt 9mm Thick Mech Wrkd/Surf Covr | $779K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$61.2MYoY · free account
Exports
$4.4MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $677.7M of Medium Density Fiberboard (MDF), Thickness Exceeding 9 mm and exported $56.5M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Canada and Chile together supply 54% of it. China pays 40.1% duty; Canada 1.9%.
customs district
destination
entry
rate provision · imports
34.9% enters free of duty; duty collected equals 11.46% of imports for consumption.