Gary,
If all you have is 3/4" foam, then I agree it is a good idea to laminate it with something else, and lay that laminate on some sort of gridwork. I don't know if pegboard would be my first choice - I think something like doorskin (1/4" luaun/mahogany ply) would be better. The pegboard is too close to cardboard for me. I suppose you could experiment and see...
Andrew
If all you have is 3/4" foam, then I agree it is a good idea to laminate it with something else, and lay that laminate on some sort of gridwork. I don't know if pegboard would be my first choice - I think something like doorskin (1/4" luaun/mahogany ply) would be better. The pegboard is too close to cardboard for me. I suppose you could experiment and see...
Andrew