A sawmill is a factory in which wood from trees is sawn into long flat pieces. a factory where trees are cut into flat pieces that can be used as wood. Machine or plant with power-driven machines for sawing logs into rough-squared sections or into planks and boards. A sawmill may be equipped with planing, molding, tenoning, and other machines for finishing processes. Cutting is performed on various large machines; reciprocating saws, band saws, or circular saws cut the log into various thicknesses as it moves past the saw on a feeder table. The biggest mills are usually located where timber can be brought by river or rail, and mill design is affected by the mode of transportation