Acoustical Mineral Wool Ceiling Panels
These rigid panels made from compressed mineral wool (rock wool) are designed for ceiling installation in offices and auditoriums to absorb sound waves and reduce echo. They fall under HTS 6806.90.00.10 as sound-absorbing articles of mineral materials, specifically classified as acoustical pads and boards, excluding those of headings 6811 or 6812. The porous structure traps sound energy, providing high Noise Reduction Coefficient (NRC) ratings.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If in loose, unformed wool form rather than rigid pads
Loose slag wool, rock wool, or similar loose mineral wools are classified under the specific subheading for unworked forms, not articles like pads or boards.
If made primarily from cellulose fibers rather than mineral wool
Articles of mineral substances like cellulose fiberboards fall under heading 6811 for worked mineral materials other than those of 6806.
If pre-assembled into complete prefabricated ceiling systems with metal grids
Prefabricated buildings or building components like full ceiling assemblies are excluded from Chapter 68 by note 1(k) and go to Chapter 94.
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Import Tips & Compliance
• Verify the product is composed primarily of mineral wool or expanded mineral materials to qualify under Chapter 68; provide lab test reports confirming sound absorption properties
• Ensure labeling includes material composition and fire ratings (e.g
• Class A per ASTM E84) as required for building materials; common pitfall is misclassifying fiberglass products
• Obtain certificates of origin for preferential duty treatment and comply with EPA formaldehyde emission standards if applicable to binders used
Related Products under HTS 6806.90.00.10
Sound-Absorbing Vermiculite Wall Panels
Panels composed of exfoliated vermiculite mixed with mineral binders form lightweight, fire-resistant boards for wall applications in recording studios and theaters. Classified under HTS 6806.90.00.10 as acoustical boards of expanded mineral materials for their sound-insulating properties. They meet acoustical standards without using excluded materials from other chapters.
Rock Wool Acoustical Stage Backdrop Boards
High-density rock wool boards used behind stages in concert venues to absorb mid-to-high frequency sounds and prevent feedback. They qualify under HTS 6806.90.00.10 as sound-absorbing articles of mineral wools, distinct from mixtures of heading 6811. Custom perforations enhance their acoustical performance.
Foamed Slag Sound Barrier Panels
Panels produced from expanded foamed slag, a byproduct of steel production, offering durable sound absorption for highway noise barriers. Falls under HTS 6806.90.00.10 as acoustical boards of expanded mineral materials, not covered by Chapter 69 exclusions. Their cellular structure provides excellent sound dampening.
Expanded Clay Acoustical Partition Boards
Lightweight boards made from expanded clay (LECA) granules bound with mineral adhesives for office partitions that reduce noise transmission. Classified in HTS 6806.90.00.10 for sound-absorbing articles of expanded clays, excluding coated textiles or Chapter 69 items. Ideal for modular interior construction.
Mineral Wool Studio Acoustic Bass Traps
Corner-mounted trapezoidal pads of high-density mineral wool designed to absorb low-frequency bass in music recording studios. HTS 6806.90.00.10 covers these as acoustical pads of mineral wools for sound absorption. Fabric-wrapped but mineral core determines classification.
Exfoliated Vermiculite Fire-Rated Sound Panels
Fire-resistant panels using exfoliated vermiculite for sound control in commercial kitchens and mechanical rooms. Under HTS 6806.90.00.10 as acoustical boards with dual heat/sound insulation from expanded minerals. Exceeds 1-hour fire rating.