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 8×8 to 12×24 inches, in multiple shapes; square-foot price should be about $5.30 to $5.60. Armstrong, 877.276.7876, armstrong.com