A week ago we decided it was time for a new bed (because before there was no bed frame). After some internet inspiration we decided on this design. This bed is rock solid. We basically built a box with a lip around our bed frame, box spring and mattress.
9 = 2 x 6's
3 = 2 x 12's
3 = 2 x 8's
1 = 2 x 4 (cut into many pieces for bracing)
lots of wood screws with a KREG jig
4 lag screws and washers