2, plastic wood can be under the same construction conditions, can win less.
To make an analogy, the outdoor floor is generally paved, and in the case of wood, a thickness of about 45 mm is required. For plastic wood, only 25mm thick material is needed, and its strength exceeds 45mm anti-corrosion wood. In other words, if the use of wood is 1 cubic meter, then the plastic wood only needs about 0.5 cubic meters.
3, plastic wood is a profile, hollow specifications. Save a lot of material.
Aluminum alloy doors and windows can be popularized so quickly, because it is a hollow profile, if it is solid, then the price is incredibly high. The plastic wood hollow part is cheaper, although it is not as high as aluminum alloy, but it is also objective. Hollow can not only reduce weight and increase strength. Plastic wood can be hollow, and anti-corrosion wood is impossible.