Product classification
HS code for Double glazing: 7008.00
Glass, multiple-walled insulating units of glass.
Classification of double glazing under HS 7008.00
Double glazing, technically referred to as multiple-walled insulating units of glass, is classified under HS code 700800. This code is part of Chapter 70, which covers glass and glassware. Heading 7008 is a specific "monotextual" heading, meaning it has no subheadings and specifically describes these units. The classification applies to units consisting of two or more panes of glass separated by a gap of dehydrated air or other gases, hermetically sealed around the edges. This construction provides thermal and acoustic insulation. The classification remains 700800 regardless of whether the glass used is tempered, laminated, or coated (such as Low-E glass), provided the final product is a sealed unit. This classification is straightforward under GRI 1, as the product perfectly matches the heading description for multiple-walled insulating units.
- Covers
- Standard double-pane sealed units
- Triple-glazed insulating glass units
- Vacuum Insulated Glass (VIG) units
- Argon or Krypton filled insulating units
- Insulating glass with integrated blinds (sealed inside)
- Structural glazing units for curtain walls
- Also under 7008.00
- Andersen Windows IGUs
- Pella Windows insulating glass
- Cardinal Glass Industries IGUs
- Pilkington Insulight
Codes often confused with 7008.00
Common mistake. A common misclassification occurs when double glazing is imported already installed in frames. If the glass is mounted in a frame (e.g., aluminum, wood, or PVC), it must be classified under the heading for the frame material, such as 7610 for aluminum windows or 4418 for wooden windows. Another error is classifying the panes separately under 7005 (float glass) or 7007 (safety glass); however, once they are sealed together as a unit, 700800 is the only correct code.
Top exporters and importers of HS 700800 (the code used for double glazing), 2025
In 2025, the largest exporter of HS 700800 (the code used for double glazing) in UN Comtrade data was Germany, with 20% of world exports; the largest importer in UN Comtrade data was the United States, with 15% 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 700800, not only double glazing.
Top exporters 2025 · share of world exports
- 1 Germany $469M 20% of world exports
- 2 Poland $355M 15% of world exports
- 3 China $250M 10% of world exports
World total: $2.4B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $346M 15% of world imports
- 2 Netherlands $284M 12% of world imports
- 3 Canada $194M 8.2% of world imports
World total: $2.4B 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 double glazing
Brazil classifies double glazing under NCM 7008.00.00: HS 7008.00 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about double glazing
What is the HS code for Double glazing?
The HS code for Double glazing is 700800 (Glass; multiple-walled insulating units of glass). The HS code for double glazing units is 700800, which covers multiple-walled insulating units of glass.
How do I classify Double glazing for customs?
Double glazing is classified under HS code 700800 — Glass; multiple-walled insulating units of glass. This is a 6-digit subheading level code.
Does 700800 include the window frame?
No, 700800 only covers the glass unit itself. If the unit is framed, it is classified as a window under the respective material chapter (e.g., Chapter 76 for aluminum).
Which countries are the top exporters of double glazing (HS 700800)?
In 2025, the top exporters of HS 700800 (the code used for double glazing) in UN Comtrade data were Germany ($469M, 20% of world exports), Poland ($355M) and China ($250M). World exports came to about $2.4B, 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 double glazing (HS 700800)?
In 2025, the top importers of HS 700800 (the code used for double glazing) in UN Comtrade data were the United States ($346M, 15% of world imports), the Netherlands ($284M) and Canada ($194M). World imports came to about $2.4B, 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 Double glazing the same in all countries?
The base HS code 700800 for Double glazing 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 double glazing in Brazil?
In Brazil, double glazing (HS 700800) is classified under NCM 7008.00.00.