Simple king bedframe -- https://helixsleep.com/products/foundation
We bought this 2 years ago and recently bought a new bedframe and do not need this. it's free and sitting outside 613/617 N Lucerne Bvld. It's perfectly good (no broken pieces) and SUPER easy to set up. You can read the instructions on Helix's site.
If this is up, it's still there. I'll take down this posting when the bedframe is gone :)