Our Impact Rolls can be installed outdoors as flooring over a stock walkway. As long as the walkway if pretty flat and doesn't have a lot of jagged edges, the roll will perform excellently. Since this roll is made from rubber, it is slip-resistant and more slip-resistant when wet. To help prevent ice build-up and to also get rid of ice, we recommend prepping the rubber flooring like you would your sidewalk in winter. You can use salt, sand, and other materials to ensure a safe walkway for anyone who uses it.