Product classification
HS code for Prefab house: 9406.90
Buildings, prefabricated, not of wood.
Classification of prefab house under HS 9406.90
Prefabricated houses that are not constructed of wood are classified under HS code 9406.90. This classification is part of Chapter 94, which covers furniture, bedding, and prefabricated buildings. A product is considered a prefabricated building if it is finished in a factory or supplied as a kit of parts to be assembled on-site. The 9406.90 code is a residual category for structures made of steel, aluminum, concrete, or plastics. The primary reason for this classification is the intended use of the structure as a permanent or semi-permanent habitation or workspace. To qualify, the unit must have the essential character of a building, including walls, a roof, and usually floor elements. This code excludes simple sheds or small tool boxes that do not meet the definition of a building structure.
- Covers
- Steel-framed modular homes
- Container houses modified for habitation
- Prefabricated concrete site offices
- Aluminum-structured greenhouses (building type)
- Mobile clinics in prefabricated building form
- Modular school classrooms
- Also under 9406.90
- Kwikspace modular buildings
- Easi-Set precast concrete buildings
- Panel Built modular offices
- Karmod prefabricated buildings (non-wood types)
- ConXtech steel frame systems
Codes often confused with 9406.90
Common mistake. The most common error is using HS code 9406.10, which is strictly reserved for prefabricated buildings made of wood. Another frequent mistake is classifying steel prefab houses under 7308.90 (structures of iron or steel). While 7308 covers parts of structures, 9406 is the specific heading for complete or nearly complete buildings. If the shipment contains only the steel frame without walls or roofing, 7308 might apply, but a complete kit must be classified under 9406.90.
Top exporters and importers of HS 940690 (the code used for prefab house), 2025
In 2025, the largest exporter of HS 940690 (the code used for prefab house) in UN Comtrade data was China, with 38% of world exports; the largest importer in UN Comtrade data was Indonesia, with 8.2% 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 940690, not only prefab house.
Top exporters 2025 · share of world exports
- 1 China $3.8B 38% of world exports
- 2 Netherlands $663M 6.7% of world exports
- 3 Italy $360M 3.6% of world exports
World total: $9.9B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Indonesia $713M 8.2% of world imports
- 2 Germany $584M 6.8% of world imports
- 3 United States $427M 4.9% of world imports
World total: $8.6B 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 codes for prefab house
Brazil splits HS 9406.90 into 3 NCM codes. Pick the one that matches your product:
- 9406.90.10Prefabricated greenhouses, not of wood
- 9406.90.20Prefab buildings, iron or steel frame and walls
- 9406.90.90Other prefabricated buildings, not of wood
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 prefab house
What is the HS code for Prefab house?
The HS code for Prefab house is 940690 (Buildings; prefabricated, not of wood). The HS code for a non-wooden prefab house is 9406.90, while wooden prefab houses are 9406.10.
How do I classify Prefab house for customs?
Prefab house is classified under HS code 940690 — Buildings; prefabricated, not of wood. This is a 6-digit subheading level code.
Do container homes fall under this HS code?
Yes, if the shipping container has been significantly modified with windows, doors, and insulation to function as a building, it is classified under 9406.90.
Which countries are the top exporters of prefab house (HS 940690)?
In 2025, the top exporters of HS 940690 (the code used for prefab house) in UN Comtrade data were China ($3.8B, 38% of world exports), the Netherlands ($663M) and Italy ($360M). World exports came to about $9.9B, 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 prefab house (HS 940690)?
In 2025, the top importers of HS 940690 (the code used for prefab house) in UN Comtrade data were Indonesia ($713M, 8.2% of world imports), Germany ($584M) and the United States ($427M). World imports came to about $8.6B, 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 Prefab house the same in all countries?
The base HS code 940690 for Prefab house 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 prefab house in Brazil?
Brazil splits HS 940690 into 3 NCM codes, so the right one for prefab house depends on the product's details: 9406.90.10 (Prefabricated greenhouses, not of wood), 9406.90.20 (Prefab buildings, iron or steel frame and walls), 9406.90.90 (Other prefabricated buildings, not of wood).