A sawmill is a facility where logs are cut into boards. Sawmill process A sawmill's basic operation is much like those of 100 years ago; a log enters on one end and dimensional lumber exits on the other end. Logging fells (falls) the trees, and log bucking cuts them to length. Logs are taken by truck, rail or river to the sawmill. Logs are scaled either on the way to the mill or upon arrival at the mill. Decking is the process for sorting the logs by species, size and end use (lumber, plywoo… (More on Sawmill)