abaker wrote:
Ideally the final construction would be easy to disassemble (for
removal) and also not creak at all

My build was simple, using 6x1 sides/ends with 3x1 re-enforcements to
carry the slats and spine, flat 6x1 with 2x2 for the centre spine, legs
attached one to each side and end, slats 4x1 dowelled to locate and hold
the frame together. No tools to disassemble, no metal in the frame, all
legs 4x4, inc the centre "king" (or humping) post.
12 years, 2 dogs, 2 kids and its still quiet and stable!

Niel.