Gonna get some ply on the floor of me van before the Cannon's forge bed goes in...it's gonna sit over the existing rubber load mat (cos I want to lino it) but how thick do I want the ply to be?
I did the exact same thing; 12mm ply and 1 and 1/2 sheets. (mines LWB - you need a bit at the back)I used 12mm thick plywood for my floor. If you are doing the full florr you will need 2 sheets. From memory you need, 1 full sheet and about 1/4 of the other sheet.
Hopefully Dave of Cannon's forge will be dealing with the attaching of the bed through my board etc.Although weight is important.
Consider how the floor will be fixed and wether or not anything needs fixing to the floor in turn. Of course anything of any weight should always be attached to the structure of the van itself where possible.