4411.92 - Of a density exceeding 0.8 g/cm3 :

This HTS category, 4411.92, specifically classifies fiberboard made from wood or other ligneous materials, which is further characterized by its density. The defining criterion for inclusion in this subcategory is that the material must have a density exceeding 0.8 g/cm³. This density threshold distinguishes it from other fiberboard classifications within the 4411.90 series.

Compared to its sibling categories, 4411.92 is differentiated by its higher density. It stands apart from 4411.93, which covers fiberboard with a density exceeding 0.5 g/cm³ but not exceeding 0.8 g/cm³, and from 4411.94.00, which pertains to fiberboard with a density not exceeding 0.5 g/cm³. Therefore, the precise measurement of the material's density is crucial for accurate classification under this heading.

Within 4411.92, further subdivisions exist to refine the classification based on the treatment of the fiberboard. The subcategory 4411.92.10.00 is designated for fiberboard that has not undergone any mechanical working or surface covering. An "Other" category exists for fiberboard that, while meeting the density requirement, has been subjected to additional processing, such as sanding, cutting, or the application of veneers or coatings, allowing for more granular tariff application based on the finished product.