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SITCSection 8
U.S. imports of mattress supports (SITC 82121) totaled $2.8M in April 2026, traded with 40 countries.
Importers of Mattress Supports paid $380K in duties in April 2026 — an effective duty rate of 15% on $2.5M in dutiable value, based on actual customs collections rather than the published tariff schedule. Mattress Supports imports of $2.8M in April 2026 ran 16% below the year-to-date monthly average of $3.3M.
Last updated: April 2026 dataMattress supports — including slatted bed bases, box springs, and platform frames designed to underlie a mattress — are classified separately from both mattresses and complete beds, reflecting their role as a distinct component in the sleep-system supply chain. The structural material (wood slats, metal springs, wire mesh) varies widely across product types, and that variation can affect the applicable tariff line. Importers sourcing from major furniture-manufacturing countries should confirm whether any active trade-remedy orders cover mattress supports specifically, as scope determinations for bed components have been contested.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
A slatted base specifically designed to support a mattress is classified as a mattress support rather than as general wooden furniture, because its dedicated function as a mattress foundation is the defining characteristic. However, a complete bed frame that incorporates a slatted base may be classified differently as a complete article of furniture, so the scope of what is being imported matters.
Not automatically. Antidumping and countervailing duty orders on mattresses have specific scope language, and mattress supports are generally treated as a separate product. However, importers should review the exact scope of any active orders and, if uncertain, request a scope ruling from the Department of Commerce to confirm whether their specific product is covered.
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Monthly import values over time