Rast dresser Ikea Hack with you, but it wasn't completely finished. The reason? I just kept forgetting to grab the trim every time I went to Hobby Lobby. Lame. Yes :) lol.
Here's the tutorial on how to do the full upholstered headboard for under $20. And here's the link on how to do the curved headboard, which I'll share some portions with you below :)
First, grab your plywood the length you need to cover the size of your bed and the height you want. Then take the corners and grab a marker attached to a piece of string. Put the end of the string on one of the top corners and then mark your curve. Do this on the other corner also.
Most people wonder how I have the headboards stand up. I just attach two 2x4s on the back of the headboard. The best time to do this is at the beginning before upholstering since you will drill from the plywood down into the 2x4s. If you want to attach it to your frame, make sure the wood is measured in line with it and use a drill to make some larger holes for the bolts.
This headboard was actually quite cheap for me since I ended up using the old plywood and batting from the headboard that was originally here. Total out of pocket this time around? About $15. Not bad, huh? :)
The trim also comes in 3 different colors. Chrome, like mine, brass and kind of an oil rubbed bronze. And it does come in squares also!
Batting: $6 (or more depending on how plush you want it)
Fabric: as low as you can find :)...or high. Mine was about $10
Nailhead Trim: $7
So under $30. But that's making it really really basic with the cheapest fabric you can find and not doing double batting. I would double up the batting if you want some cushion. So, around $40. Not bad considering I've seen similar headboards going for over $500 at Pottery Barn and Ballard Designs. :)