Question

Is there any alternative available to wood?

Answer 1

They require virtually no finishing, staining or maintenance, and are very durable. Another growing segment of the deck market is basically the plastic — recycled or not — of composites without any wood fibers. ... In many other ways, though, composites and plastic wood are good hardwood alternatives.

Answer 2

Answer:

g1. Hemp

Hemp is a fast-growing and sustainable crop that generates more construction-grade fiber per acre than most trees and other crops. It can be used in place of lumber and a wide range of other materials. For example, Washington State University researchers found hemp-based medium density fiberboard to be twice as strong as wood.