I use flat sheets over the box springs and frame works well here are some ideas/videos https://www.youtube.com/results?search_query=diy+no+sew+king+size+bed+dust+ruffles
You can attach material directly onto the box springs by stapling.
Here's a tutorial for dust ruffles with a no sew option: https://missmustardseed.com/28512-2/
I think that would be helpful for you Amber, https://www.youtube.com/watch?v=FdSbMoNC1EU
Let me know how does that go? Bushra