When a tree is processed at a lumber mill, the first stage of cutting the lumber up into dimensional lumber is known as the “rough sawn” stage. Usually, a huge industrial bandsaw is used to cut the tree into standard dimensions such as 1×4 or 2×4 inch boards.

Unlike hand hewn wood, rough sawn lumber is lumber that has been cut from the log using a bandsaw without being planed smooth.The blade of the bandsaw leaves saw marks on the lumber, which can give the wood an interesting texture.Board feet is a unit of measurement used to calculate the amount of lumber in a given area.

Rough lumber (also known as rough sawn wood) is, above all, untreated. Untreated lumber hasn’t had preservative chemicals added to it, which provides advantages like cost, thickness, and, studies have shown, added moisture.