Wooden railing is primarily made from treated anti-corrosion wood, which is not a modification process but a protective measure, still retaining the original physical properties of wood. The original use of the wood remains with the anti-corrosion wood, and its applications are expanded due to the chemical properties of the anti-corrosion wood.

Today, preservative-treated wood is widely used in the maintenance and renovation of ancient Chinese architecture, as well as in municipal projects, parks, and residential communities for applications such as preservative wood fences, tree pit railings, wooden walls, walkways, leisure paths, benches, planters, fences, trash bins, waiting sheds, and landscape bridges, among other outdoor wooden structures. It can also be utilized in indoor decorative works.

Due to the varying compositions of different preservatives, it's essential to differentiate between them for treating wood in various locations.

Treated wood maintains the natural visual, tactile, and auditory eco-friendly properties of wood, but more importantly, it enhances its anti-corrosion features and a certain flame-retardant property. It is widely used in industries, agriculture (crop support wood), construction, and more. As people's demands for living environments improve, its applications have gradually extended to wooden villa houses, floor decks, verandas, wooden bridges, garden furniture, flower stands and pots, and various other outdoor wooden products, satisfying people's admiration for nature, simplicity, and unity. Developed countries in Europe and America have been widely using it since the 1950s.