Home Depot still offers 20 Square Feet of Shaw Berber Do-It-Yourself 12"x12" Carpet Tiles in Berry (pictured), Sand, or Meadow for $27.98 with free shipping. At $1.40 per square foot, that's tied with our mention from last week as the least expensive such tiles we could find. Sales tax is added where applicable. These 100% olefin squares have an adhesive back for "peel-and-stick" installation.