This is extremely important: begin stapling the batting along ONE side of the headboard ONLY. (If you are not careful, you could end up with uneven and bumpy batting under your fabric and it will ruin the look of the headboard.) Then, pull it tight enough on the other side, and don’t begin stapling until you’re sure there aren’t any ripples or waves in the batting. Finish stapling the batting the other side of the headboard. When you get to the corners, you will need to set down the staple gun and pick up the scissors to do the following:
Carefully staple each “finger” of batting, while pulling taut, so that the shape of the headboard is clearly visible.
I find it easier to dog-ear the batting at the very corners. I like to do that so that I can be liberal with stapling the fabric on those spots later on. Also, it’s really difficult to staple fabric on top of other staples. Trust me on this one.
Don’t leave your headboard’s legs bare! Even though you won’t see much of the legs once it’s placed behind the bed, the headboard will look a little strange without padded legs. I like to think it would look like a house on stilts, but that’s just my crazy imagination.