While some may wonder what sawn timber actually means, this is just the planks that we use to make our furniture. In any sawmill, sawn timber is a base product that will undergo further processing. It is produced by running logs through the saws. There are six basic thickness sizes of sawn timber: 23, 26, 32, 38, 46, and 52 mm. Planks which are between 23 and 38 mm thick are most often used in the furniture industry. Thicker planks – i.e. those that are 46 and 52 mm thick – are used in the construction industry.