U.S. imports of Iron & Steel Structures and Structural Parts (Other) (HS 730890) totaled $366.0M in August 2026, imported from 84 countries.
Importers of Iron & Steel Structures and Structural Parts (Other) paid $130.2M in duties in August 2026, an average duty rate of 36.13% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataColumns, pillars, posts, beams, girders, steel grating, sheet-metal roofing and siding, and architectural or ornamental ironwork that do not fall under more specific structural headings are captured here — a broad residual category central to commercial and industrial construction. Mexico and Canada together account for the largest share of US imports, reflecting deep integration in North American construction supply chains, with China, Belgium, and the Netherlands also notable sources. The ten 10-digit lines segment by alloy type, product form (grating, sheet-metal cladding, ornamental work, or general structural members), and machining status. Section 232 tariffs apply across the heading, and Chinese-origin structural steel may also carry Section 301 exposure.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
15.3K import shipments a month
Steel grating — open-grid flooring panels used in industrial platforms, walkways, and drainage covers — has its own dedicated 10-digit line (7308907000) within this heading. It should not be confused with wire mesh or perforated plate, which classify elsewhere in Chapter 73. The bar spacing, load-bearing design, and manufacturing method (welded vs. press-locked) are relevant to confirming the correct classification.
Architectural and ornamental work (7308909060 / 7308909560) covers decorative iron or steel elements — such as railings, grilles, gates, and façade panels — where aesthetic design is a primary feature. Standard structural members like beams and girders are classified in the columns/pillars/posts lines. When an article combines structural and ornamental functions, the essential character and primary use guide the classification decision.
Subheading 1 of 5 in heading 7308
Subheading 730890 · $366.0M of $515.1M
ImportsExports
Imports
$366.0MYoY · free account
Exports
$64.7MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $4.2B of Iron & Steel Structures and Structural Parts (Other) and exported $740.8M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Mexico and Canada together supply 53% of it. China pays 72.8% duty; Mexico 19.0%.
customs district
destination
entry
rate provision · imports
2.7% enters free of duty; duty collected equals 36.13% of imports for consumption.
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 |
|---|---|---|---|---|---|
| 7308909590 | Structures and Parts Etc NESOI Iron or Steel | $260.3M | 35.69% | 96.77% | $92.9M |
| 7308903000 | Columns Pillars Posts Beams Girders Etc Irn/Nal St | $44.3M | 35.74% | 95.02% | $15.8M |
| 7308906000 | Columns Pillars Posts Beams Girders Etc NESOI | $42.6M | 37.48% | 97.44% | $16.0M |
| 7308907000 | Steel Grating | $6.0M | 31.28% | 98.15% | $1.9M |
| 7308909560 | Architectural and Ornamental Work, Iron or Steel | $3.7M | 46.96% | 96.65% | $1.7M |
| 7308909530 | Sheet-Metal Roofng Siding Flring Etc, Iron or Stel | $3.6M | 53.94% | 100.00% | $1.9M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
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.
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