this is a new product we came across. this is real slate stone veneer. it is 3mm to 6mm thick. it comes in a 24” x 48” sheet on a fiberglass backing. it can be cut with any carbide tools and glued up on almost anything you can dream of. on this project we cut the sheets into 8” squares and then glued them onto 3/8 plywood. the chimney chase is 8ft tall and 17” square. we then trimmed it in oak to blend together the existing woodwork in the house. i was even mildly surprised to find that even 23gauge nails would go right through the slate, made installing trim a breeze. the slate has 3 coats on semigloss sealer on it as it came raw stone, so we sealed it before doing anything to eliminate finger prints and such. the whole idea was to have a stone look and feel without the weight due to the fact that the house wasn’t designed for the weight of solid stone. i will be using more of this as time goes by.