Made from a limestone composite and recommended for floors and walls—but not showers or fireplace surrounds—Alterna Engineered Stone Tiles can be installed over minor subfloor irregularities without cracking, Armstrong says. Sizes range from 8x8 to 12x24 inches, in multiple shapes; square-foot price should be about $5.30 to $5.60. Armstrong, 877.276.7876, armstrong.com