Gone to new home - Home-made slate tile corner hearth pad. Made for my previous stove, an Englander NC-30, so meets the R-Value requirement for that stove. It is built with steel studs, 2 layers of cement board, and slate tile. Was slightly damaged moving it to install the new stove, but would be easy to repair. It is very heavy. It is in an above grade addition to our home. New owner is responsible for loading.