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NAICSSector 32
U.S. imports of gypsum products (NAICS 327420) totaled $26.4M in July 2026, traded with 31 countries.
Importers of Gypsum Products paid $187K in duties in July 2026 — an effective duty rate of 20% on $913K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataNAICS 327420 covers establishments manufacturing gypsum wallboard, plaster, and related building products from calcined gypsum (calcium sulfate hemihydrate). Wallboard thickness, fire-resistance rating (Type X), moisture resistance, and panel dimensions are the primary specification variables that determine product suitability for specific construction applications and building-code compliance. Importers of finished gypsum board should be aware that product quality concerns—including those related to off-gassing from certain imported wallboard—have historically prompted regulatory scrutiny and litigation.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
3.2K shipments/mo
Gypsum wallboard must meet ASTM C1396 (the standard specification for gypsum board) and, for fire-rated assemblies, must be listed by a recognized testing laboratory such as UL or Intertek. Importers should obtain third-party test reports confirming compliance with applicable ASTM standards and ensure that product markings meet the requirements of the model building codes adopted in the target market.
Imported gypsum wallboard from certain origins has been associated with elevated sulfur compound emissions that caused corrosion of copper wiring and HVAC components in affected homes. Importers should require independent laboratory testing for sulfur content and off-gassing, obtain certificates of conformance from manufacturers, and review any current CPSC guidance or import alerts before committing to a new foreign supplier.
National industry 1 of 1 in naics industry 32742
National industry 327420 · $26.4M of $26.4M
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Imports · July 2026
origin
Mexico and Canada together supply 96% of it.
customs district
Census does not publish district detail for this classification system.
destination
Census publishes state breakdowns for NAICS to the 4-digit level only. See NAICS 3274 for those.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$26.4MYoY · Pro
Exports
$23.4MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.