King Size Steel Coil Innerspring Unit
An uncovered king-size innerspring core with Bonnell coils, measuring 193 cm wide, 203 cm long, and 23 cm deep, designed for luxury mattress production. Classified under HTS 9404.29.90.13 due to its large dimensions and innerspring construction without covering. Ideal for high-end bedding manufacturers needing customizable cores.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If fitted with springs but fully covered
Adding any outer fabric ticking changes classification from uncovered units to covered mattresses in 9404.29.10.
If for non-assembled coil springs sold individually
Separate barbed wire strands or unconnected coils are stranded wire products, not assembled mattress supports.
If marketed as complete furniture bedding
Fully assembled and covered versions exceeding size specs may shift to Chapter 94 furniture if designed for end use.
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Import Tips & Compliance
• Label shipments clearly as 'uncovered innerspring units' with dimension certifications to prevent customs disputes
• Include material safety data sheets for steel coatings to comply with import regulations on metal bedding components
• Avoid bundling with fabric or foam layers, as sets may classify under 9404.29.1000 or as complete mattresses
Related Products under HTS 9404.29.90.13
Queen Size Uncovered Innerspring Mattress Core
This queen-size innerspring unit measures 152 cm wide, 203 cm long, and 20 cm deep, consisting of steel coils encased in minimal padding without any outer fabric cover. It falls under HTS 9404.29.90.13 as an uncovered innerspring mattress support exceeding the specified dimensions for queen beds. These cores are imported by manufacturers for final assembly into complete mattresses.
Oversized Queen Pocketed Coil Core
This 160 cm wide, 200 cm long, 25 cm deep uncovered pocketed innerspring unit uses individually wrapped coils for superior support. It meets HTS 9404.29.90.13 criteria for large uncovered mattress innersprings. Primarily imported for hybrid mattress manufacturing.
Full XL Innerspring Mattress Frame Unit
Uncovered full XL innerspring core at 137 cm wide, 198 cm long, and 21 cm deep, with continuous wire grid and tempered steel coils. Classified in HTS 9404.29.90.13 for its queen-like dimensions and spring-stuffed bedding design. Essential component for budget mattress lines.
RV King Uncovered Spring Unit
Specialized 91 cm wide, 198 cm long, 18 cm deep innerspring core for RV mattresses, using high-density coils. Fits HTS 9404.29.90.13 exactly at minimum width threshold for large uncovered units. Imported for recreational vehicle bedding customization.
California King Innerspring Mattress Assembly
Uncovered innerspring unit for California king beds, 183 cm wide, 213 cm long, and 22 cm deep, featuring pocketed coils for motion isolation. HTS 9404.29.90.13 applies to this large-scale, spring-filled core without upholstery. Used by upholsterers to build premium sleep products.