duh ! the foam I have seen when I do see upholstery in progress is 1 inch ir maybe 1 and 1/2 dense. Cotton is laid over this is thick wads. That's conventional, and nothing need be, conventional that is. That board there is pretty hard, so even a padded down surface of dense material is better than too little. Come here for the first time and ask upholstery, heh ?.
I am wearing tamales this week. Can't believe it all goes to my waistline. There should be a limit to what fat cells can hold, you know ? Anybody wanna know all I found on ebay ? Or should I keep my newest bad behgavior to myself ?