Wood processing is an engineering discipline comprising the production of forest products, such as pulp and paper, construction materials, and tall oil. Paper engineering is a subfield of wood processing. The major wood product categories are: sawn timber, wood-based panels, wood chips, paper and paper products and miscellaneous others including poles and railway sleepers. Forest product processing technologies have undergone extraordinary advances in some of the above categories. Improvements have been achieved in terms of recovery rates, higher qualities in terms of durability and protection, higher utilization of NTFPs such as various grain stalks and bamboo, as well as the development of new products such as reconstituted wood-panels. Progress has not been homogenous in all the forest product utilization categories. Even though there is only little information available on the subjects of technology acquisition, adaptation and innovation for the forest-based industrial sector, it is clear that sawmilling has been far less affected by the spread of innovations than the manufacturing of panel products. 
Wood processing produces additives for further processing of timber, wood chips, cellulose and other prefabricated material.