The wood industry or lumber industry is the industry concerned with forestry, logging, timber trade, and the production of primary forest products and wood products (e.g. furniture) and secondary products like wood pulp for the pulp and paper industry. Some of the largest producers are also among the biggest owners of timberland. The wood industry has historically been and continues to be an important sector in many economies.

In the narrow sense of the terms, wood, forest, forestry and timber/lumber industry appear to point to different sectors, in the industrialized, internationalized world, there is a tendency toward huge integrated businesses that cover the complete spectrum from silviculture and forestry in private primary or secondary forests or plantations via the logging process up to wood processing and trading and transport (e.g. timber rafting, forest railways, logging roads).[citation needed]

Processing and products differs especially with regard to the distinction between softwood and hardwood.[1][2][3][4][5] While softwood primarily goes into the production of wood fuel and pulp and paper, hardwood is used mainly for furniture, floors, etc.. Both types can be of use for building and (residential) construction purposes

Lumber and wood products, including timber for framing, plywood, and woodworking, are created in the wood industry from the trunks and branches of trees through several processes, commencing with the selection of appropriate logging sites and concluding with the milling and treatment processes of the harvested material.