- Poles, posts and pilings: treated wood (3)
- Piles, foundation and marine construction: treated wood (2)
- Poles and pole crossarms, treated wood (4)
- Posts, treated wood (1)
- Millwork, treated wood (3)
- Preserving (creosoting) of wood (3)
- Structural lumber and timber, treated wood (5)
- Wood products, creosoted (4)
