Could you just use the Pre-Bulbed 1/4-20 .280 Grip Plus Nuts and bolts to attach the 2×6’s?

Probably, but I wanted to take advantage of the threaded stock riv nuts that come from the factory.

Why did you list so many other sized lock nuts and rivnuts in your diagram?

There are only 2 places that are threaded for an M8 bolt. I wanted more that 2 bolts, so I added 2 extra 1/4-20″ bolts.

Do the pre-drilled holes vary in size on that van wall??

Yes, some already have rivnuts that fit an M8 bolt. Then there are wholes that fit plus nuts perfectly.

Thanks!

A Full size mattress fits fine sideways, sure it was squished a tad but not too bad. You do not have to cut the mattress if you don’t want to. Note, we later rotated the bed to be parallel with the van https://moreysintransit.com/redoing-the-bed-a-third-time/ .

Thank you! Also, what is the finished bed size? I also want to do the bed “sideways”. I am only 5’6” so i think it will work fine, but all the measurements online seem to indicate that a full mattress is 75ins long, but the van isn’t that wide? So i guess I need to trim the mattress? And your measurements indicated a width of 65inches, but a full mattress is 54in wide? I am trying to wrap my mind around the size and positioning.
Thank you!

~25″. It’s tall enough to fit surfboards when on rail.

It depends on how you measure it but our counter is 46.5″. I would say you have between 45″ and 50″ of usable space depending on how far back you like your seats.