DIY Indoor/Outdoor Anti-Slip Carpet Tile Squares - Summer Pine Each box contains 20 tiles and covers 53.5 square feet. This tile has a "rough walk-off mat feel" and is great for entrance ways and indoor/outdoor applications. Slip resistant - excellent for slippery entrances Cuts down on track-in dirt and water Great for workshops, garages, pool houses, patios, business entrances, high traffic commercial locations, etc.