I used the king headboard that came with our bedroom set. The mattress, etc fits in the frame of your bed..right? So you should be able to purchase ANY California King head and footboard. We don't have a foot-board, because we have an "adjustable" Select Comfort..it raises and reclines. I suppose we could, tho...
sw
We upgraded from a queen and stuffed the headboard, etc. in storage. I got the Cal/King with frame, and haven't found a descent one in Cal/King size. I see alot in King, but Cal-King is wider. Always told I must special order it.
Anyway, that's on the list of "things to do" soon.