NAICS 321114 — Wood Preservation 
BEA sector: Sawmills and wood preservation
Activity: Bridge and trestle parts, wood, treating
Activity: Creosoting of wood
Activity: Crossties, treating
Activity: Flooring, wood block, treating
Activity: Millwork, treating
Activity: Mine props, treating
Activity: Mine ties, wood, treated, manufacturing
Activity: Pilings, foundation and marine construction, treating
Activity: Pilings, round wood, cutting and treating
Activity: Pilings, wood, treating
Activity: Poles, round wood, cutting and treating
Activity: Poles, wood, treating
Activity: Posts, round wood, cutting and treating
Activity: Posts, wood, treating
Activity: Preserving purchased wood and wood products
Activity: Pressure treated lumber made from purchased lumber
Activity: Railroad ties (i.e., bridge, cross, switch) treating
Activity: Structural lumber and timber, treating
Activity: Ties, wood railroad bridge, cross, and switch, treating
Activity: Timber, structural, treating
Activity: Treating purchased wood and wood products
Activity: Treating wood products with creosote or other preservatives
Activity: Trestle parts, wood, treating
Activity: Wood fence (i.e., pickets, poling, rails), treating
Activity: Wood products, creosoting purchased wood products