Carpets are much improved over their predecessors from even just ten years ago. Whether it's made of polyester or nylon, the denser the pile, the better the carpet. Carpet pile weight can vary from 20 to 100 ounces per square foot. Most good residential carpets are about 40 to 45 ounces. The denser the pile, the better it will wear over time. To learn more about the options in carpet, see our video.