6 Answers

B and Q ,OR Wicks, would know,

Depends on type of tree but roughly Cellulose 40%, Lignin27%, Hemicellulose 30%.

In this day & age of synthetics it's a difficult concept to grasp but wood is made of wood.A completely natural product. It is by far the most versatile & the easiest building material you could use.

Wood is an amazing natural resource which is renewal.  It is made of the cells of the tree, as a plant, there are cell walls, unlike our cells which have none.  Within these cell walls are chemicals of cellulose (making them woody).  Depending upon the genetics of the specific plant, there is more or less of the particular types of cellulose and lignin.   Annual plants have less, perennial plants having more grow upon this and build layers of wood.