I'm pretty sure you'll feel ALL the bumps woth only 1" of foam. It compresses far too much that that small amount to work. Think 2.5" minimum and use heavy vinyl, forget the canvas unless your building an old military truck and want originality.


1953 Chevy 5-window 3100
In the Stovebolt Gallery
More pix on Picturetrail

Dave
Engine & Driveline Moderator

If you can't make seventy by an easy road, don't go. ~~ Mark Twain