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NAICSSector 32
U.S. imports of prefabricated wood buildings (NAICS 321992) totaled $28.4M in April 2026, traded with 38 countries.
Importers of Prefabricated Wood Buildings paid $1.5M in duties in April 2026 — an effective duty rate of 18% on $8.3M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataFactory-built wood structures—panelized wall systems, modular building sections, and complete prefabricated cabins or garden structures—are manufactured under NAICS 321992 and shipped as flat-pack or pre-assembled modules. Structural panel construction, engineered lumber content (LVL, LSL, I-joists), and compliance with local building codes are the primary commercial and regulatory differentiators. Imports of prefabricated wood buildings may be subject to Section 301 tariffs when originating from China, and the applicable HTS classification depends on whether the structure is complete, incomplete, or shipped as panels. Buyers should confirm that imported structures meet the International Residential Code or applicable state building standards before procurement.
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Classification depends on the degree of completion at time of importation. A complete or substantially complete building presented in disassembled form may be classified as a complete article under GRI 2(a), while individual panels not constituting a complete structure are typically classified by their component material. A binding ruling from CBP is the most reliable way to resolve classification before importation.
Importers should secure third-party engineering certifications demonstrating compliance with the applicable model building code (IBC or IRC) and any state-specific amendments. Some jurisdictions require approval from the state's industrialized building program before a prefabricated structure can be installed, so buyers should confirm local requirements prior to finalizing supplier contracts.
Monthly import values over time
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No geographic breakdown available
U.S. trade for this product is not broken down by state or port in the latest Census Bureau release.