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Wood Is A Natural Composite Material
Wood is made mostly of cellulose fibers, which are held together by lignin, a natural polymer that acts like glue. This combination makes wood incredibly strong for its weight. Some engineered wood products can rival or even outperform steel in certain construction applications. It's kind of like nature's version of fiberglass.
Mini Facts
1
About 40-50% of dry wood is cellulose.
2
Lignin is what gives wood its rigidity and helps trees stand hundreds of feet tall.
3
Modern mass timber buildings use engineered wood because it is incredibly strong, renewable, and stores carbon, which is good for the environment.