Mountain Fog comes from Armstrong Alterna’s Grain Directions design: a light gray 12x24 tile with vertical streaking and a few darker patches. Armstrong sorts the look under Overall Patterns, and the finish is low gloss. A carton has 12 tiles, covers 24.13 sq ft, and weighs about 42 lb.
It’s waterproof, installs full spread at any grade level, and takes optional grout on its rounded edges. It carries Armstrong’s limited warranties: lifetime on residential floors and five years on light commercial ones.