Wooden railing is primarily made from anti-corrosion wood, treated with chemical agents, which is not a modification process but a protective measure, maintaining the wood's inherent physical properties. The original uses of the wood are retained in 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 halls, and scenic bridges, among other outdoor woodworking. It can also be used in indoor decorative pieces.

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

Treated wood maintains the natural, eco-friendly visual, tactile, and auditory properties of wood, while also enhancing its anti-corrosion characteristics and flame-retardant properties. It is widely used in industries, agriculture (supporting wood for crops), and construction, and as people's requirements for living environments improve, it has gradually extended to applications in log cabin villas, flooring platforms, pergolas, balconies, wooden bridges, garden furniture, flower stands, pots, and other various outdoor wood products. It satisfies people's appreciation for nature, simplicity, and organic beauty. Developed countries in Europe and America have been widely using it since the 1950s.