Horizontal or Vertical???

[Roehm3108]

Why is it that plywood cladding of the side walls on some vans is laid horizontally, with the grain going east-west, while others have it laid vertically with the grain running north-south? Is one way better than the other, if so which?? I intend to reclad my Chesney, for various reasons, and at the moment the plywood is fitted vertically with a wooden vertical cover strip. For appearance sake, I am considering fitting the new cladding horizontally, with a horizontal cover strip. What are your thoughts?
Ray

[retro1]

Howdy Ray
There is no right or wrong answer here in my opinon.
As long as all the ply is going one way I think it does not matter. All the books I have go both ways?
If you do not want to see the grain paint the surface with a good paint and sand between coats or do what they did in th 1960's use masinite whick has no grain.
I also think that if a sheet of ply fits better one way because of cost then this to is a major way also of deciding.
Hope this helps you out

Cheers Retro1