(1)
In general
All softwood lumber and softwood lumber products classified under subheading 4407.10.00, 4409.10.10, 4409.10.20, or 4409.10.90 of the HTS, including the following softwood lumber, flooring, and siding:
(A)
Coniferous wood, sawn or chipped lengthwise, sliced or peeled, whether or not planed, sanded, or finger-jointed, of a thickness exceeding 6 millimeters.
(B)
Coniferous wood siding (including strips and friezes for parquet flooring, not assembled) continuously shaped (tongued, grooved, rabbeted, chamfered, v-jointed, beaded, molded, rounded, or the like) along any of its edges or faces, whether or not planed, sanded, or finger-jointed.
(C)
Other coniferous wood (including strips and friezes for parquet flooring, not assembled) continuously shaped (tongued, grooved, rabbeted, chamfered, v-jointed, beaded, molded, rounded, or the like) along any of its edges or faces (other than wood moldings and wood dowel rods) whether or not planed, sanded, or finger-jointed.
(D)
Coniferous wood flooring (including strips and friezes for parquet flooring, not assembled) continuously shaped (tongued, grooved, rabbeted, chamfered, v-jointed, beaded, molded, rounded, or the like) along any of its edges or faces, whether or not planed, sanded, or finger-jointed.
(E)
Coniferous drilled and notched lumber and angle cut lumber.
(3)
Other lumber products
Except as otherwise provided in subsection (b) or (c), softwood lumber products that are stringers, radius-cut box-spring frame components, fence pickets, truss components, pallet components, and door and window frame parts classified under subheading 4418.90.46.95, 4421.90.70.40, or 4421.90.97.40 of the HTS.