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HSChapter 44
U.S. imports of medium density fiberboard (mdf), thickness exceeding 5 mm but not exceeding 9 mm (HS 441113) totaled $11.5M in April 2026, traded with 31 countries.
Last updated: April 2026 dataMid-range MDF panels in the 5–9 mm thickness band serve as a structural workhorse for cabinet door cores, interior door skins, and retail display fixtures, where rigidity exceeds what thinner panels can provide without the weight of thicker stock. Germany and Canada are the leading sources of US imports in this thickness range, reflecting European precision-milled product and North American proximity supply. Seven 10-digit tariff lines—spanning unworked panels (4411131000), laminated tongue-and-groove (4411132000), ligneous tongue-and-groove (4411133000), non-surface-covered mechanically worked (4411136000), ligneous mechanically worked (4411138000), standard wood molding (4411139010), and surface-covered NESOI (4411139090)—track surface treatment and edge profile. Imports from China in this category may be subject to Section 301 tariffs, making origin documentation a key compliance step.
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Yes. MDF panels originating from China in this thickness range are generally subject to Section 301 tariffs. Importers should verify the applicable tariff list and any product exclusions with a licensed customs broker, as Section 301 coverage and exclusion status can change.
Mechanical working refers to post-production shaping operations such as routing, profiling, or edge-milling that alter the panel's geometry beyond a flat sheet. Panels that have been tongue-and-groove profiled or otherwise edge-shaped fall under the mechanically worked lines, while flat, unprocessed panels that have only received a surface coating (or none) are classified under the not-mechanically-worked lines.
Monthly import values over time
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