4411.93.20.00 - Laminated boards bonded in whole or in part, or impregnated, with synthetic resins 🖩

This HTS category, 4411.93.20.00, specifically classifies "Tongued, grooved or rabbetted continuously along any of its edges and dedicated for use in the construction of walls, ceilings or other parts of buildings" within the broader classification of other fiberboard with a density exceeding 0.5 g/cm³ but not exceeding 0.8 g/cm³. The defining characteristic for inclusion here is the presence of continuous machining along the edges, such as tongued and grooved or rabbetted profiles, coupled with a clear intended application in building construction. These features facilitate interlocking and assembly, making them suitable for specific structural or finishing purposes in buildings.

It is important to distinguish this classification from its sibling, 4411.93.30.00, which covers "Other" fiberboard in the same density range and material composition but without the specific edge profiling and dedicated building construction purpose. While both fall under "Other" fiberboard of this density, the presence of the specialized edge treatments and explicit end-use designation for construction purposes are key differentiators for 4411.93.20.00. This category serves as a precise endpoint, meaning there are no further subcategories branching from it. Therefore, classification within 4411.93.20.00 hinges solely on the presence of these specific physical characteristics and intended use.