The thickness of hardwood lumber is expressed as a fraction. Here are the various lumber thicknesses compared to one another. the length of the lumber ranges from Up to 8'. Longer lengths may be available for local pick up or truck freight shipment, also the Width ranges 4''-10'' with the edges still rough. Straight line ripping on one edge is available as well (available above with your order. The thickness is 13/16'' thick, surfaced smooth two sides (4/4 S2S). On the pictures i have posted you shall see the various thickness of the Shedua wood.