This U.S. industry comprises establishments primarily engaged in (1) treating wood sawed, planed, or shaped in other establishments with creosote or other preservatives, such as alkaline copper quat, copper azole, and sodium borates, to prevent decay and to protect against fire and insects and/or (2) sawing round wood poles, pilings, and posts and treating them with preservatives.

Including:

• Bridge and trestle parts, wood, treating
• Creosoting of wood
• Crossties, treating
• Flooring, wood block, treating
• Millwork, treating
• Mine props, treating
• Mine ties, wood, treated, manufacturing
• Pilings, foundation and marine construction, treating
• Pilings, round wood, cutting and treating
• Pilings, wood, treating
• Poles, round wood, cutting and treating
• Poles, wood, treating
• Posts, round wood, cutting and treating
• Posts, wood, treating
• Preserving purchased wood and wood products
• Pressure treated lumber made from purchased lumber
• Railroad ties (i.e., bridge, cross, switch) treating
• Structural lumber and timber, treating
• Ties, wood railroad bridge, cross, and switch, treating
• Timber, structural, treating
• Treating purchased wood and wood products
• Treating wood products with creosote or other preservatives
• Trestle parts, wood, treating
• Wood fence (i.e., pickets, poling, rails), treating
• Wood products, creosoting purchased wood products