Hi, Thanks for the question. The back splash is natural stone. It c an be purchased through Marrazzi Tile. We used 3 x 6 for the feild tile on the splash and 2x2 as a border along the bottom and the insert over the range. The accent trim can be purchased at Emser Tile- Oil Rubbed Bronze 2x2. They will come in different reliefs. The frame of the design: we used 2 x 12 black marble chair rail and 1 x 12 pencil dome as a liner. Happy Designing! Theresa Heitmeier Silver Oak Interiors 210-701-7978