Y'ALL. THIS.
And y'all are not not gonna believe how EASY it is to make, so peep this quick video & see for y'all-selves:
Yassssss! Here's what you need:
This is the awesome place that stocks all the pipe pieces & parts above (except the lumber...)
Simply email their Projects Team your mattress dimensions, along with your desired headboard height & the height of the legs at footboard end & a sketch, to projects@simplified building.com. They email you back a quote that includes all the pieces & parts to make your bed frame (+ shipping). Seriously. But WAIT- there's MORE...
You can easily hire this step out to a trusted carpenter, like I did-- thx again Chris White-- or get your DIY on & construct it yourself. And though that may sound complicated, it's actually only two (or three, depending on mattress size-- ours is a full) 1/2" pine rails cut to size that run vertically beneath 1/2" pine horizontal slats, all safely screwed together. Y'all still with me? There's even more in depth info about this project, originally completed by someone in NYC named Heather, found here (including an awesome Sketchup diagram & a thorough list of items needed) of everything I've just described...or y'all can just watch this video too:
Now y'all go out and get your pipe & flange bed frame ON!