U.S. imports of Iron & Steel Towers and Lattice Masts (SITC 69112) totaled $70.4M in August 2026, imported from 26 countries.
Importers of Iron & Steel Towers and Lattice Masts paid $26.3M in duties in August 2026, an average duty rate of 37.37% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataLattice towers and masts of iron or steel are a primary structural form for transmission line towers, telecommunications masts, wind turbine support structures, and broadcast antenna towers. Section 232 tariff exposure applies to steel inputs and may extend to fabricated tower structures depending on classification, making cost modeling for large infrastructure projects sensitive to trade-remedy status. Galvanization grade, bolt-hole patterns, and section geometry are typically engineered to project-specific drawings, which means imports are almost always made-to-order rather than off-the-shelf.
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209 import shipments a month
Tubular (monopole) wind turbine towers are generally classified under a separate provision for towers and tubular masts, while open lattice-frame wind turbine support structures may fall here. The distinction between tubular and lattice construction is the key classification criterion, and the correct heading should be confirmed against the specific structural design drawings.
Importers typically present engineering drawings specifying the lattice or open-frame construction, a commercial invoice identifying the end-use application (e.g., transmission line, telecom), packing lists with section weights, and mill test reports for the steel. For Buy America-funded projects, additional origin documentation for the steel itself may be required by the project owner.
Basic heading 87 of 766 in section 6
Basic heading 69112 · $70.4M of $27.0B
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Imports · August 2026
origin
Denmark and Germany together supply 60% of it. Denmark pays 50.0% duty; Germany <0.1%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$70.4MYoY · free account
Exports
$7.8MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $970.9M of Iron & Steel Towers and Lattice Masts and exported $25.5M.
Through August 2026. Source: U.S. Census Bureau.