Its so easy to forget engineering started with wood and then came Blacksmith, with out wood we would not have wagon wheels, boats, oh yeh pattern makers who used wood to create the moulds for casting.
The first lathes were wood!!!
The first threads cut were on wood!!
We use wooden mallets, wooden handles on many tools, wooden tool boxes to store engineering tools.
Homes sheds and cars buses and trucks not to forget planes boats and ships engineered all with wood. Do not think for one minuet wood is not used when plastics or metal doesn't exist for without wood decaying we don't get oil, coal, to produce synthetic materials such as oh yeh plastics which comes from petroleum products which comes from crude oil after years of rotten wood matter.
Metal production can not survive without wood.