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HSChapter 94
U.S. imports of mattress supports (HS 940410) totaled $2.8M in April 2026, traded with 40 countries.
Last updated: April 2026 dataMattress supports — including slatted bed bases, box springs, and similar foundations designed to underlie a mattress — enter the US under a single 10-digit line (9404100000), with Turkey the leading supplier followed by China and Vietnam. The product sits at the intersection of the furniture and bedding supply chains, and importers should confirm whether a given article functions as a standalone support or is sold as part of a complete bed set, since the latter may affect classification. Section 301 tariffs apply to Chinese-origin goods in this category.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
A mattress support (9404100000) is an article specifically designed to support a mattress — such as a slatted base or a box spring — and is classified in Chapter 94 heading 9404. A bed frame that merely holds the support and mattress assembly typically classifies as furniture under heading 9403. If the two are imported together as a set, classification follows the component that gives the set its essential character.
Turkey does not have a free trade agreement with the United States, so Turkish-origin mattress supports enter at the standard MFN duty rate without preferential treatment. Importers sourcing from Turkey should also monitor any applicable trade-remedy proceedings that may affect this category.
Supplier Network
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Monthly import values over time