32111  Sawmills and Wood Preservation 

This industry comprises establishments primarily engaged in one or more
of the following: (1) sawing dimension lumber, boards, beams, timber,
poles, ties, shingles, shakes, siding, and wood chips from logs or
bolts; (2) sawing round wood poles, pilings, and posts and treating
them with preservatives; and (3) treating wood sawed, planed, or shaped
in other establishments with creosote or other preservatives to prevent
decay and to protect against fire and insects. Sawmills may plane the
rough lumber that they make with a planing machine to achieve
smoothness and uniformity of size.