King Size Independent Coil Innerspring Frame
An uncovered king-size innerspring frame with independent steel coils wired together for premium mattress cores. HTS 9404.29.90.50 applies to this other material (steel) uncovered unit, designed exclusively for bedding per chapter notes excluding general metal parts. It is entered as a semi-finished bedding component.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If specifically for California king dimensions
Statistical suffixes may apply for size variants, though base heading remains the same.
If industrial non-bedding spring assemblies
Springs for machinery or general use fall under base metal springs, not furniture bedding.
If partially covered with textile but not stuffed
Textile-made rattan or similar if textile dominant, but springs dominate here.
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
• Use invoices specifying 'bedding innerspring unit' to differentiate from Section XV metal goods
• Prepare for CBP exams on spring gauge and count; discrepancies can cause reclassification
Related Products under HTS 9404.29.90.50
Custom Offset Coil Innerspring Core
Offset coil innerspring core providing conforming support, uncovered and built with steel for custom mattress production. Falls under HTS 9404.29.90.50 for other uncovered innerspring units not of rubber/plastics. Designed for floor-placed bedding per chapter placement notes.
Queen Posture Spring Innerspring Unit
Heavy-gauge posture spring innerspring for queen mattresses, reinforced for durability, shipped uncovered. HTS 9404.29.90.50 covers this steel-based other innerspring bedding component, excluding parts of general use.
Twin Continuous Wire Innerspring Core
Continuous wire innerspring core for twin beds, formed from single steel wire, uncovered for upholstery. Under HTS 9404.29.90.50 as other innerspring units.
Full Marshall Coil Innerspring Assembly
Marshall pocketed innerspring assembly for full mattresses, steel coils in minimal fabric pockets, uncovered externally.
Cal King Heavy Duty Innerspring Unit
Heavy-duty innerspring for California king, steel construction, uncovered.
RV Queen Innerspring Mattress Core
Compact innerspring core for RV queen mattresses, steel springs uncovered.