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

Today, preservative-treated wood is widely used in the maintenance and renovation of ancient buildings in our country, as well as in municipal projects, parks, and residential communities. It is extensively employed in outdoor wooden works such as preservative wood fences, tree pit railings, wooden walls, boardwalks, leisure walkways, seating, planters, fences, trash bins, waiting halls, and scenic bridges. It can also be used in indoor decorative items.

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 unique anti-corrosion properties and certain flame-retardant abilities. It is widely used in industries, agriculture (supporting wood for crops), and construction. As people's demands for living environments improve, its applications have gradually expanded to include wooden别墅, flooring platforms, pergolas, balconies, wooden bridges, garden furniture, flower stands, pots, and other various outdoor wooden products, satisfying people's admiration for nature, simplicity, and naturalness. Developed countries in Europe and America have been widely using it since the 1950s.