Smooth Primed MDF S4S Trim Board

S4S (surfaced four sides) trim board made from medium-density fiberboard, primed smooth for painting. HTS 4411.93.90.10 designation as standard wood molding due to density specs and rectangular profile with eased edges. Used for base trim, window stools, and general interior millwork.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.9%+35.0%38.9%
🇲🇽Mexico3.9%+10.0%13.9%
🇨🇦Canada3.9%+10.0%13.9%
🇩🇪Germany3.9%+10.0%13.9%
🇯🇵Japan3.9%+10.0%13.9%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

4412Lower: 10% vs 38.9%

If blockboard, laminboard, or battenboard construction

Layered wood construction changes classification from fiberboard to heading 4412 subheading.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Specify S4S dimensions and priming type in commercial invoice to establish trim board identity

Test for moisture content (under 8%) to prevent warping claims and classification disputes

Use heat-treated pallets (IPPC ISPM-15) for wooden packaging compliance

Related Products under HTS 4411.93.90.10

Primed Pine Standard Wood Baseboard Molding

This fiberboard baseboard molding, with a density between 0.5 and 0.8 g/cm³, is primed for painting and used to cover wall-floor junctions in residential construction. Classified under HTS 4411.93.90.10 as standard wood molding made from medium-density fiberboard (MDF) rather than solid wood. The profiled edges and standard dimensions distinguish it from other fiberboard products.

White Primed MDF Door Jamb Molding

Medium-density fiberboard (MDF) molding specifically profiled for door jamb applications, with factory-applied white primer. Falls under HTS 4411.93.90.10 as standard wood molding due to its fiberboard composition and density range of 0.5-0.8 g/cm³. Commonly used in interior door framing for new construction and renovations.

Oak Grain MDF Crown Molding

Crown molding made from medium-density fiberboard with embossed oak grain texture and primer coating. Classified in HTS 4411.93.90.10 as standard wood molding within the specified density range, distinguished by its decorative ceiling-wall profile. Ideal for architectural trim in homes and commercial spaces.

Primed Finger-Joint Pine Casing Molding

Fiberboard casing molding with finger-joint construction and white primer, density 0.5-0.8 g/cm³ for window and door casings. HTS 4411.93.90.10 applies as standard wood molding, not solid lumber, due to reconstituted wood fibers. Provides smooth, paint-ready surface for trim applications.

Colonial Style MDF Chair Rail Molding

Classic colonial profile chair rail molding manufactured from medium-density fiberboard (0.5-0.8 g/cm³). Specifically classified under HTS 4411.93.90.10 as standard wood molding for protecting walls from chair backs. Factory-primed for easy finishing in traditional interior designs.