
Wooden beam cut to separate the two bed sections, and first section built up fully.

Shown in van as a single unit. This part of the bed holds the fridge and portable toilet. If I am using the van to take a bike this set-up gives me a bench and a bit more room to move about.

This shows the cut in the beam.

Beam in place. The beam is made from a 44mm sq and 18mm x 69mm pieces of pine. I cut those staggered so that the beam is held down and in place. With the other section fitted it's held firmly in place.
A few more tweeks and the whole bed will be firmly fixed to the van and removable without use of any tools.