To start, I lined up the boards where I wanted them, I had to cut one in order to make it the correct size, but the others were all the size I wanted. In order to secure them on the back, I nailed in two small strips of wood (about 1 and 1/2 inches wide). Once the board was together, I used chalk to outline my "K". I thought about using a stencil, but it was easier for me to free hand this. Once I had a rough outline, I began to paint. I just used a flat white paint that I had in my house. I painted one coat on and let it dry.
One coat was enough since I wanted it to look distressed. I began to sand the "K" with a piece of sand paper until I got it to the distressed point that I wanted. Then I sanded the rest of my sign in order for it to all look the same.
This was after I sanded the whole board.
After I brushed off all of the dust from sanding it, I could have been done there (and you can too if you wish), but I decided I wanted to wax it to give it a darker look. Here is the difference when I was half way done waxing:
I used Annie Sloan Clear Wax, but you could use any wax you wanted. I use an old T shirt to rub the wax in. Once I was done waxing the whole sign, I let it set for a few hours and it was done :)
Here is the finished product in my boyfriends apartment! It was hung on the wall using screws.