4411.14 - Of a thickness exceeding 9 mm:

This HTS category, 4411.14, specifically classifies medium density fiberboard (MDF) that has a thickness exceeding 9 millimeters. MDF, as a general category under 4411, is characterized by its composition of wood fibers that are bonded together with resins or other organic substances under pressure and heat. This subcategory focuses on the thicker dimension of MDF panels, distinguishing it from thinner variants.

The primary distinction between 4411.14 and its sibling categories lies in the dimensional threshold. HTS 4411.12 covers MDF with a thickness not exceeding 5 mm, while HTS 4411.13 addresses MDF with thicknesses between 5 mm and 9 mm. Therefore, any MDF panel measuring more than 9 mm in thickness falls under the purview of 4411.14.

Within this category, further subdivisions are provided to refine the classification based on post-manufacturing treatment. The subcategory 4411.14.10.00 pertains to MDF that has not undergone any mechanical working or surface covering. The subsequent "Other" designation allows for the classification of MDF panels that have been subjected to processes such as sanding, grooving, or the application of veneers, laminates, or coatings, provided they still meet the thickness requirement of exceeding 9 mm.