Often people are of the opinion that wood is one of the most eco-damaging building material. The fact that using wood is connected directly to felling of trees makes one perceive so. In reality, it is not so simple.
Firstly, we must understand that any act of building, and therfore using any building material as an impact on the environment. Our quest is to reduce this footprint as much as possible while providing healthy shelters.
Having said that, we must stress on the fact that wood is far from being the most harmful building material. It is a renewable resource. While trees do take long to grow fully, good management ensures that they do not deplete completely, like the raw materials used to make most of our modern day building materials.
Secondly, the embodied energy of wood is way lesser as compared to any of these other materials. Simply put, it makes much less energy to produce, process, transport, install, dismantle, reuse, recycle and decompose wood than cement, steel etc.
Moreover, we are against monoculture like that of teakwood for construction. Just like we believe in using local materials, we also believe in working with the locally available (and therefore locally used) timbers. In Maharashtra, they generally are Ain, Neem, Babhul, etc. Thus, by using various different types of timbers for different functions we reduce the damage onto the environment.
(Image - Different types of wood used in the roof frame, the flooring, posts and railings)