I assembled the bed in the room before I finished it.
First I clamped everything together:
I use these hardwood squares I made long ago that are super useful for this type of clamping:
These are the holes for the bolts that connect on the other side with barrel nuts. I used a 3/4 inch forstner bit to make room for the nut head:
I cut the plugs with a plug cutter on the drill press:
And I cut them flush with a flush trim saw.
I installed the support boards which are made out of 2x6 lumber
These are joined with metal squares:
The pieces separating each board are made with plywood and glued to the rail:
This is how it all looked put together before finish:
I sanded everything with the orbital sander at 80, 150 and 220 grit, then used a finish of 2 parts tung oil, 1 part polyurethane and 1 part mineral spirits. I gave it 3 coats in total and used steel wool in between.
And this is the finished bed: