Steel Frame Greenhouse Kit
A prefabricated steel frame greenhouse kit designed for home gardening, featuring modular panels and assembly hardware for on-site erection. Classified under HTS 9406.90.0120 as a metal greenhouse other than glass-covered or plastic-covered types, per chapter notes defining prefabricated buildings as factory-finished elements assembled on site.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as loose metal frames without cladding or assembly fittings
Loose metal structures or parts not constituting a complete prefabricated building fall under Chapter 73 as other structures.
If primarily for agricultural/commercial use rather than general greenhouses
Prefabricated buildings of metal for specific agricultural purposes may classify under 9406.00 subheading.
If made of aluminum rather than steel or other iron/steel
Aluminum structures change the material heading from iron/steel (9406.90) to Chapter 76.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify structural compliance with US building codes (e.g
• wind/snow load ratings) and obtain engineering certifications before import
• Provide detailed assembly instructions and material specs in documentation to avoid reclassification as parts under heading 7308
Related Products under HTS 9406.90.01.20
Commercial Steel Greenhouse Shelter
Heavy-duty prefabricated steel greenhouse for commercial horticulture, with arched metal frame and provision for plastic sheeting. HTS 9406.90.0120 applies to metal greenhouses not specified as glass or plastic covered, as factory-assembled elements for site erection.
Butterfly Greenhouse Steel Frame
Prefabricated steel frame butterfly greenhouse with hinged roof sections for easy access and ventilation. Falls under 9406.90.0120 for innovative metal greenhouse designs.
Dutch Light Metal Greenhouse
Traditional prefabricated steel Dutch light greenhouse with angled glazing bars for optimal light capture. HTS 9406.90.0120 as other metal greenhouses with classic design.
Retractable Roof Metal Greenhouse
Prefabricated steel greenhouse with manual retractable roof panels for natural climate control. HTS 9406.90.0120 covers as other metal greenhouses with mechanical features.
Quonset Hut Style Greenhouse
Semi-cylindrical prefabricated steel Quonset hut adapted as greenhouse with end wall provisions. Classified 9406.90.0120 as other metal greenhouses per tariff structure.
Modular Polycarbonate Greenhouse
Prefabricated metal greenhouse with modular steel framing and twin-wall polycarbonate panels for diffused light and insulation. Falls under HTS 9406.90.0120 as 'other' metal greenhouses, excluding specific glass or plastic coverings explicitly noted elsewhere in the tariff.