Since the arrival of hydrocarbon extraction, plastics have been widely used for unlimited purposes, bringing a group of problems. For an easy comparison the melting point is far from metals, they can be easily scratched or fractured, with time tend to soften, …, and the worst of all is their great environmental impact when they aren't handled with visions of sustainability.
As always there are other alternatives, and wood is one of the classical choices. Some kinds of wood have an exceptional low weight and wonderful resistance strength. This property is usually related with maturation times producing other set of inconveniences, especially in the side of environment aggressions.
For knowing the resistance, the Janka hardness test —or here—serves as a good guide. It's curious that between the first place and the last one the difference is in the order of thousands. The hardest appears as of today as an endangered species, exploited to near extinction.
In fact, when the concern is about woods that are interesting for construction purposes, standing in outdoor environments or with heavy frictions, or weight support, the industry tends to look toward resources that cause a constant degradation of ecosystems with a very ancient history and in exchange for personal conveniences, for the record.
There's still room toward forms of synthetic wood with comparable properties of those provided by Nature as example. Does the “industry” will permit their existence for a near future?