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NAICSSector 33
U.S. imports of prefabricated metal buildings & components (NAICS 332311) totaled $23.4M in April 2026, traded with 39 countries.
Importers of Prefabricated Metal Buildings & Components paid $3.8M in duties in April 2026 — an effective duty rate of 25% on $15.0M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataPre-engineered metal building systems — including structural frames, roof and wall panels, and connecting hardware shipped as a kit for field assembly — are a widely traded product category serving commercial, agricultural, and industrial construction markets. Imported prefabricated metal buildings are generally classified under HTS Chapter 94 or Chapter 73 depending on whether the shipment constitutes a complete building kit or individual structural components, and that distinction carries meaningful duty implications. Steel-intensive content makes these products sensitive to Section 232 tariff exposure on upstream inputs.
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Generally yes. A complete, unassembled building kit may be classified as a prefabricated building under HTS Chapter 94, while individual structural components (columns, rafters, purlins) imported separately typically fall under Chapter 73 structural metal subheadings. The GRI 2(a) rule for incomplete or unassembled articles is central to this analysis.
Standard commercial entry documentation applies (commercial invoice, packing list, bill of lading), but importers should also be prepared to provide engineering drawings or specifications that identify the building's structural components, as CBP may request these to confirm classification and verify that Section 232 steel/aluminum content is properly accounted for.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $11.5M | $723K | -$10.8M |
| CHINA | $5.0M | $1.8M | -$3.2M |
| MEXICO | $3.1M | $3.4M | +$366K |
| BELGIUM | $1.0M | -- | -$1.0M |
| KOREA, SOUTH | $722K | $90K | -$632K |
Monthly import values over time
No geographic breakdown available
U.S. trade for this product is not broken down by state or port in the latest Census Bureau release.