Heavyweight Uncoated Kraftliner Paperboard
This is uncoated paperboard in rolls, weighing 250 g/m², with over 80% sulfate wood fibers, meeting minimum Mullen bursting strength for kraftliner exceeding 637 kPa at 200 g/m² equivalent. It falls under HTS 4805.93.40 as other uncoated paperboard weighing 225 g/m² or more, not further worked beyond chapter note 3 specs. Primarily used for high-strength packaging and box linings.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If machine-finished or machine-glazed
Kraftliner with specific finish falls under 4804.11 instead of 'other' uncoated in 4805.
If weighing less than 225 g/m²
Weight threshold determines subheading; lighter kraft paper shifts to 4805.91.
If filter paper of a kind used for filtration
Specific end-use as filter paper moves it out of general paperboard to heading 4823.
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Import Tips & Compliance
• Verify fiber composition exceeds 80% sulfate process wood fibers via lab testing to confirm kraftliner status and avoid reclassification
• Provide mill test certificates showing weight ≥225 g/m² and Mullen burst strength to prevent delays at customs
• Ensure product is in rolls or sheets, uncoated, and not printed or further processed per chapter note 3
Related Products under HTS 4805.93.40
Uncoated Duplex Board 300 g/m²
Uncoated duplex paperboard in sheets, weighing 300 g/m², made from recycled and virgin fibers for multi-ply structure. Classified under HTS 4805.93.40 as other uncoated paperboard ≥225 g/m², suitable for rigid packaging like shoeboxes. Lacks coating and further working beyond basic note 3 processing.
Sulfite Wrapping Paperboard 250 g/m²
Machine-glazed uncoated paperboard weighing 250 g/m², over 40% sulfite wood fibers, ash ≤8%, Mullen burst index ≥1.47 kPa·m²/g. Fits HTS 4805.93.40 as other heavy uncoated paperboard for wrapping applications. Meets chapter specs without further processing.
Chipboard 350 g/m² Uncoated
Dense uncoated chipboard from recycled fibers, 350 g/m² in sheets, used for book covers and backing boards. Classifies in HTS 4805.93.40 as other uncoated paperboard weighing 225 g/m² or more, per chapter note 3.
Greyboard Uncoated 225 g/m²
Uncoated greyboard paperboard at minimum 225 g/m², made from mixed recycled waste, dull grey color, for construction and model making. HTS 4805.93.40 covers this as other heavy uncoated paperboard not specially processed.
Heavy Straw Pulp Board 260 g/m²
Uncoated paperboard from straw pulp via mechanical-chemical process, 260 g/m² rolls, for sustainable packaging. Falls under HTS 4805.93.40 as other uncoated ≥225 g/m², outside specific straw fluting note.
Industrial Backing Paperboard 400 g/m²
Thick uncoated paperboard 400 g/m² for backing in laminates and displays, mixed fiber composition. HTS 4805.93.40 as other heavy uncoated paperboard in sheets.