4403.25.01.40 - Douglas-fir (Pseudotsuga menziesii)

This classification, HTS Code 4403.25.01.40, specifically covers rough lumber of Douglas-fir (Pseudotsuga menziesii). This refers to wood in its initial state after felling, which may have had its bark and sapwood removed, or has been squared to a basic shape. Crucially, the defining characteristic for this subcategory is that the smallest cross-sectional dimension of the timber must be 15 cm or greater. This level of specificity is important for differentiating lumber intended for various industrial uses, from larger construction projects to specialized manufacturing.

Distinguishing this classification from its siblings lies in the species of coniferous wood. While this node focuses exclusively on Douglas-fir, its sibling categories identify other specific coniferous species such as Western hemlock (Tsuga heterophylla) under 4403.25.01.50, other hemlock varieties under 4403.25.01.52, Western red cedar (Thuja plicata) under 4403.25.01.55, other cedars under 4403.25.01.57, and a general "Other" category for unlisted coniferous woods under 4403.25.01.64. The selection of the correct HTS code hinges on accurate identification of the wood species.

As this HTS code represents a leaf node, there are no further subdivisions. This means that once the wood is identified as Douglas-fir, rough-cut, with a smallest cross-sectional dimension of 15 cm or more, it falls directly under this specific classification without further breakdown into more granular subcategories. Classification at this point relies on the accurate determination of the species and adherence to the dimensional criteria outlined in the heading.