How to Divide a Board Evenly—The Easy Way

To divide a board into thirds, choose any number that’s divisible by three, like nine, 12, 18, etc. Lay a square or tape measure diagonally across the board with zero at one end and in this case 18 at the other.

To divide a board into thirds, choose any number that’s divisible by three, like nine, 12, 18, etc. Lay a square or tape measure diagonally across the board with zero at one end and in this case 18 at the other.

Mark the 1/3 spot (6 in.) and the 2/3 spot (12 in.).

Use those marks to draw the lines dividing up the board.

Divide a board into quarters by choosing a number divisible by four, fifths by choosing a number divisible by five and so on. This trick will work for any board no matter how wide it is.

use a square to divide a board evenly

mark a board into thirds using a square

how to divide a board evenly

board divided into even thirds