4418.21.80 - Other

This HTS category, 4418.21.80, encompasses doors and their frames and thresholds specifically manufactured from tropical wood, excluding those classified as French doors. French doors, a sibling category (4418.21.40.00), are characterized by their glass panes extending for most of their length, distinct from the primary focus of this sub-heading. The items within this classification are typically constructed from hardwoods originating from tropical regions, such as teak, mahogany, or rosewood, and are intended for use as architectural elements in building construction.

Within this sub-classification of tropical wood doors, further distinctions are made based on specific construction types to ensure precise tariff application. The most prominent subdivisions are flush doors and other types of doors. This allows for a clear separation between doors with a solid, smooth surface on both sides and those with more elaborate construction, such as panel doors or doors incorporating different materials or decorative elements.

The "Other" designation within this subcategory serves as a residual classification for tropical wood doors that do not meet the specific criteria for flush doors. This could include a variety of door constructions, such as panel doors, louvered doors, or doors with specialized features not covered by the more specific sub-classifications. The common thread remains their construction from tropical wood and their intended use as architectural doors, frames, or thresholds.