On Sunday, July 21, 2013 2:45:36 PM UTC-5, Robert Macy wrote:
[note google has again goofed up my access to Usenet so I will not be able to respond timely] We have stone flooring that butts against the drywall. Not sure, but think the stone is over thin masonite-like layer, over some soft layer, over slab concrete. At the edge, it appears they originally put in grout, but that grout crumbles out easily, plus painting the wall down to the flooring does NOT make a nice edge. What caluking, or something like that, can I use to make the transition pliable to not crack in the future, yet hard enough to resemble grout? The drywall extends behind the stone tiles [stone tiles are 1/2 inch thick] and most of the original grouting is cracked and crumbling out. Worst construction technique I've seen in a long time, but I have to change it. Just don't know how. At the metal sliding doors, I plan on using clear, since overlap won't show and the crack is dark enough to match the doors. The stone is patterned, but generally, light cream colored limestone out of Turkey.

If there is no baseboard, then the wall is subject to scuff marks from anything that touches the wall and floor. I definitely vote for baseboard, and leave a gap between the bottom of the baseboard and the top of the stone enough that you can slip a piece of cardboard from a cereal box between the stone and the bottom of the baseboard for when you finish the baseboard. Assuming you have a stud finder and/or a floor-level plate behind the sheetrock, you have a good backing for the baseboard. Otherwise, some construction adhesive will hold it in place.