They cut and lay thin pieces of foam board all along the edges, over hanging it about 1.5". He used a hot glue gun to put a few dots of glue to hold it in place, When he was done he pealed off the foam boards and that is what they take back to the shop for a pattern to cut the quartz to size. We have requested the edges be a bullnose finish.
A small sample of the quartz we selected. We have been looking at tiles for a back splash too.