Im after some advice on the floor. I have a RIB Altair 120 bed which I've positioned in the van to get an idea of space etc its currently sat on some old 9mm floor with 2 layers of insulation - Im about to buy a ply floor which id assumed 12mm is the normal thickness but have noticed the Chair is ridiculously high. Im 6ft my head touches ceiling and legs barely touch floor, poor design of what is a great quality bed/chair. Would it be ok to cut the ply so the chair is fixed directly to the floor? or for the sake of 12mm not worth the hassle. Id prefer to have this fitted and not do myself but have been unable to find anyone that doesn't require a wait of 12 months (Dorset)