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

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

Due to the varying compositions of different preservatives, it is necessary to differentiate the use of wood treated with different preservatives for various locations.

Treated wood maintains the natural visual, tactile, and auditory eco-friendly characteristics of wood, while also enhancing its anti-corrosion properties and flame-retardant qualities. It is widely used in industries, agriculture (supporting 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, trellises, pots, and a variety of other outdoor wooden products. It satisfies people's appreciation for nature, simplicity, and the harmonious blend of natural elements. Developed countries in Europe and America began to widely use it in the 1950s of the last century.