The Power Step automatically deploys as the door opens and closes, emerging and retracting even on extreme slopes. The power step is fully enclosed and features a weatherproof, non-skid surface, and can be fully submerged in water. The power step is designed to fit under all doors and is available in a range of sizes. The aluminum power step has a capacity to withstand up to 900lbs of weight. The power step operates in an extreme range of temperatures from -22 degrees to 176 degrees Fahrenheit. Our steps incorporate an electronic circuit protection, electronic limit protection, and overload protection.