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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If dimensions fall below any threshold
Units not exceeding all three size limits (e.g., shorter length) go to residual 'other' innerspring categories.
If primarily rubber construction
Rubber mattress cores or springs classify under Chapter 40 tires/new pneumatic articles, excluding Chapter 94.
If imported as prefabricated building components
Innersprings designed for modular housing beds may classify as prefab building parts under 9406.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Measure in packed state but confirm unpacked dimensions match HTS size criteria during customs inspection
• Document coil type (Bonnell vs. pocketed) and gauge for accurate valuation and anti-dumping checks on steel
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.
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.
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.