Bed/couch measurements - help needed please

[hilldweller]

It has crossed my mind several times that a completely stripped out shell with nothing to copy from was not the most sensible starting point for a beginner project We live and learn.....

Can someone advise what's the normal sort of width for seat bases (the ones with storage underneath that turn into beds at night). I'm thinking 700 ish though the Caravelle's curves mean the squabs will be slightly wedge-shaped I think. Too wide? Too narrow?

And also what dimension timber should I use for the framing and what thickness ply? I have some 19x42mm and some 6mm ply but am wondering if that's sturdy enough? Would be a tad embarrassing if it collapsed under me on the first outing.

And while I think about it, is there a normal thickness for wall linings and cupboard sides etc? Less than 6mm?

Thanks heaps

hilldweller

[surfingyogini]

I'm not sure of you van but to give you an idea... We're using 12mm ply on our van for the exterior walls and the seat frames. I think anything else would be pushing my luck to sleep on! We've got 3mm caravan lining ply to line the intern and (I think) 4mm ply ply for the walls of the cupboards and the edging around the shelves.

Our front diner seats are 950mm and the rear ones are 1200mm. Hope that helps a little! Good luck (photos please? ;d)