This project requires 1 cut to be made. Seriously! I measured 6ft from the bottom of the board and marked a square line. Then using a handsaw I cut the board to length. You can of course make the board as long as you want but 6ft is a good average to work with.
With the board cut to length the next step is to mark the measurement along the right hand side. I only show quarter foot marks which are ever 3 inches. Using a tape measure I marked 3 inch steps all the way up the board. I started the measurements at 6 inches. This is so the board can be hung 6 inches off the floor and the measurements will be right.