U.S. imports of Mattress Supports (HS 940410) totaled $5.2M in August 2026, imported from 48 countries.
Importers of Mattress Supports paid $655K in duties in August 2026, an average duty rate of 12.71% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Mattress Supports imports of $5.2M in August 2026 ran 40% above the year-to-date monthly average of $3.7M.
Last updated: August 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.
431 import shipments a month
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.
ImportsExports
Imports
$5.2MYoY · free account
Exports
$474KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $45.9M of Mattress Supports and exported $9.6M.
Through August 2026. Source: U.S. Census Bureau.
Subheading 6 of 6 in heading 9404
Subheading 940410 · $5.2M of $290.1M
Trade Directory
List your company under HS 940410 — Mattress Supports, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 9404100050 | Mattress Supports, NESOI | $5.0M | 12.33% | 98.32% | $619K |
| 9404100020 | Mattrss Supprts Used in Combo With Mattrss, of Wood | $142K | 25.88% | 83.52% | $37K |
| 9404100000 | Mattress Supports | — | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 9404100000 | Mattress Supports | $474K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
Turkey and Germany together supply 61% of it. China pays 35.9% duty; Germany 10.0%.
customs district
destination
entry
rate provision · imports
2.1% enters free of duty; duty collected equals 12.71% of imports for consumption.