Product classification
HS code for Timber I-beams: 4418.83
Wood, engineered structural timber products, I beams.
Classification of timber I-beams under HS 4418.83
Timber I-beams are classified under HS code 4418.83, a specific subheading introduced in the 2022 Harmonized System update to categorize engineered structural timber products. These beams are composite structural members used primarily in floor and roof construction. They are defined by their unique cross-section, consisting of top and bottom flanges made from solid sawn lumber or laminated veneer lumber (LVL), bonded to a central web made of oriented strand board (OSB) or plywood. The classification under Heading 4418 is appropriate because these items are considered builders' joinery and carpentry of wood. According to the General Interpretative Rules (GRI), specifically GRI 1 and 6, the product is classified based on its manufactured state as a structural component rather than raw timber. The inclusion of 4418.83 ensures that these highly engineered products are distinguished from traditional solid wood beams or other types of engineered wood like glulam, reflecting their specific role in modern architectural engineering.
- Covers
- Prefabricated wooden I-joists
- Composite timber I-beams
- Engineered wood floor joists
- Structural roof I-members
- LVL-flanged wood I-beams
- Also under 4418.83
- Boise Cascade BCI Joists
- Weyerhaeuser TJI Joists
- LP SolidStart I-Joists
- Georgia-Pacific GP Lam I-Joists
Codes often confused with 4418.83
Common mistake. Timber I-beams are frequently misclassified under HS code 4418.81, which is reserved for glued-laminated timber (Glulam), or 4418.82, which covers cross-laminated timber (CLT). While all three are engineered wood products, they have distinct structural compositions. Another common error is using HS code 4407, which covers simple sawn or chipped wood. Because I-beams are assembled from multiple components, they must be classified under 4418 as manufactured joinery.
Top exporters and importers of HS 441883 (the code used for timber I-beams), 2025
In 2025, the largest exporter of HS 441883 (the code used for timber I-beams) in UN Comtrade data was Canada, with 50% of world exports; the largest importer in UN Comtrade data was the United States, with 48% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 441883, not only timber I-beams.
Top exporters 2025 · share of world exports
- 1 Canada $234M 50% of world exports
- 2 United States $86M 18% of world exports
- 3 China $56M 12% of world exports
World total: $471M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $234M 48% of world imports
- 2 Canada $82M 17% of world imports
- 3 United Kingdom $40M 8.3% of world imports
World total: $483M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for timber I-beams
Brazil classifies timber I-beams under NCM 4418.83.00: HS 4418.83 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
EU Regulatory Requirements
This product category is subject to the EU Deforestation Regulation (EUDR). Importers must provide due diligence statements proving the product was not produced on deforested land after December 31, 2020.
This product is covered by the EU Timber Regulation (EUTR), requiring operators to exercise due diligence to minimize the risk of placing illegally harvested timber on the EU market.
Questions about timber I-beams
What is the HS code for Timber I-beams?
The HS code for Timber I-beams is 441883 (Wood; engineered structural timber products, I beams). The correct HS code for Timber I-beams is 4418.83, specifically for engineered structural timber products.
How do I classify Timber I-beams for customs?
Timber I-beams is classified under HS code 441883 — Wood; engineered structural timber products, I beams. This is a 6-digit subheading level code.
Are I-beams classified differently if the web is made of metal?
Yes, if the beam utilizes a metal web (often called an open-web joist), it may be classified under Chapter 73 as a structural steel article or under 4418.99, depending on the material that provides the essential character.
Which countries are the top exporters of timber I-beams (HS 441883)?
In 2025, the top exporters of HS 441883 (the code used for timber I-beams) in UN Comtrade data were Canada ($234M, 50% of world exports), the United States ($86M) and China ($56M). World exports came to about $471M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of timber I-beams (HS 441883)?
In 2025, the top importers of HS 441883 (the code used for timber I-beams) in UN Comtrade data were the United States ($234M, 48% of world imports), Canada ($82M) and the United Kingdom ($40M). World imports came to about $483M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Timber I-beams the same in all countries?
The base HS code 441883 for Timber I-beams is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for timber I-beams in Brazil?
In Brazil, timber I-beams (HS 441883) is classified under NCM 4418.83.00.