Seasoned wood 26 1/2" long, 3" wide, 1 to 1 1/8" thick
3/8" dowel, 3" long
- With yardstick or dark-colored chalk line make a straight line down the whole length of the board at its middle so that each parallel side is 1 1/2" from the middle line. Make a similar middle line on the other side of the board. By taking identical measurements out from the middle line on either side of the board one can lay out the spearthrower and make it straight.