What's the difference between Chinese fir, eucalyptus, hardwood and preservative wood? Which is more suitable for outdoor furniture?

Because I don't know what outdoor furniture you are making, I can only tell you the characteristics of these materials:

Chinese fir is an evergreen tree species with many varieties, light and soft texture, resistance to decay and moth-eaten, and small deformation. Since ancient times, it has been a common material in architecture, shipbuilding and all kinds of furniture, especially ordinary folk furniture, and has been widely used. Belongs to mid-range wood.

Willow Eucalyptus: Its material has moderate weight, straight or oblique texture, slightly coarse structure, easy processing and good bonding performance. There is slight warping and cracking during drying. It belongs to low-grade wood.

Hardwood: not a specific tree species, but a general term. Oak, Fraxinus mandshurica, Fraxinus mandshurica, birch, elm and jujube all belong to hard miscellaneous wood. Conventional processing veneer, core board, long medium board, man-made board, container board, all kinds of multi-layer boards that need strength and weight, can also be used as floor panels. Advantages: beautiful wood grain, high hardness, wear resistance and corrosion resistance. Disadvantages are not easy to process, easy to scrap and lack of raw materials.

Anti-corrosion wood: it is a kind of wood with special anti-corrosion treatment, which has the functions of anti-corrosion, anti-termite and anti-fungus. The outdoor wooden floor is specially used for outdoor environment, and can be directly used in the environment in contact with water and soil. It is the first choice material for outdoor anticorrosive wooden sheds such as outdoor wooden floors, garden landscape floors, outdoor wooden platforms, terrace floors and outdoor wooden plank roads.

So what exactly is your outdoor furniture for? A gazebo? Ceiling? Tables and chairs? Platform? You can select by referring to the above attributes! Good luck!