Any product classified under subheading 4409.10.05 of the HTS that is continually shaped along its end or side edges.
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 4422.214.171.124, 44126.96.36.199, or 44188.8.131.52 of the HTS.
Any kit described in subparagraph (A) shall be individually packaged, and contain the exact number of wooden components needed to make the box-spring frame described on the entry documents, with no further processing required. None of the components contained in the package may exceed 1 inch in actual thickness or 83 inches in length.
Radius-cut box-spring frame components, not exceeding 1 inch in actual thickness or 83 inches in length, ready for assembly without further processing, if radius cuts are present on both ends of the boards and are substantial cuts so as to completely round 1 corner.
Fence pickets requiring no further processing and properly classified under subheading 4421.90.70 of the HTS, 1 inch or less in actual thickness, up to 8 inches wide, and 6 feet or less in length, and having finials or decorative cuttings that clearly identify them as fence pickets. In the case of dog-eared fence pickets, the corners of the boards shall be cut off so as to remove pieces of wood in the shape of isosceles right angle triangles with sides measuring ¾ of an inch or more.
Any softwood lumber or softwood lumber product that originated in the United States, if the importer, exporter, foreign processor, or original United States producer establishes to the satisfaction of U.S. Customs and Border Protection upon entry that the softwood lumber entered and documented as originating in the United States was first produced in the United States.