Now, you need to screw on the legs of the headboard.
Take note that there will be a small gap between the top of the headboard and the wall, as the legs made the bottom of the headboard thicker. If this doesn’t bother you, great. I know I wanted the headboard flush against the wall. Using the left-over particle board, I used my handmade stencil and cut out two more pieces and nailed it to the top of the board. I finished it off with another straight edge piece of particle board between the two top corners.
You should end up with corners that look like this more or less:
To the left is the center of the headboard. To the right is the leg of the headboard. Now you’re ready to begin the upholstering process!