It depends on how wide your lengths of wood are.
That depends on how big of a deck you're building. Just multiply the length by the width.
A Thickness Planer is a machine that takes wood and produces flat boards of an even thickness throughout their length. The DeWalt company produces a Portable Thickness Planer which produces such boards.
answer 200
A ruler. Measure the length, width, and height. Then multiply the three of the to get the volume. Equation: V=LxWxH V=Volume L=Length W=Width H=Heigtht x=multiply Example: A block of wood has a length of 4, a height of 2, and a width of 3. What is the volume? 4x2x3=24