Walnut Slab Lake Mendota 1378A. The length is 120 inches long. The widths are 16, 14, and 13 inches. Flattened thickness of 2 inches. In person sales takes precedence over web sales. Come see the slab in person. The website is updated frequently but there is a chance something online could be sold already. Feel free to email and inquire about specific slabs. Local pickup only, call/email for more information or to schedule.