Soapstone Tiles for Flooring and Walls - M Teixeira Soapstone Available Standard Tile Sizes M. Teixeira Soapstone maintains an inventory of 12″ x 12″ and 18″ x 18″ tiles for immediate delivery. 24" x 24", 12" x 24" or any other random cut sizes can be available on a special order. Minimum quantities may apply. The Classic Look with Unique Style: Soapstone Subway Tile