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

Today, treated wood is widely used in the maintenance and renovation of ancient Chinese architecture, as well as in municipal engineering, parks, and residential communities for applications such as treated wood fences, tree pool railings, wooden walls, walkways, leisure paths, benches, flower beds, railings, trash bins, waiting halls, and landscape bridges, among various outdoor woodwork. It can also be utilized in indoor decorative pieces.

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

Treated wood maintains the natural, eco-friendly visual, tactile, and auditory properties of wood, while also enhancing its unique anti-corrosion features and certain flame-retardant properties. It is widely used in industries, agriculture (crop support wood), construction, and other fields. As people's demands for living environments improve, its applications have gradually expanded to include log cabin villas, floor decks, porches, wooden bridges and walkways, garden furniture, flower stands and pots, and various other outdoor wood products. It satisfies people's admiration for nature, simplicity, and natural beauty. Developed countries in Europe and America began using it extensively in the 1950s.