Most wool rugs will hold up well for a relatively long time, but there is a simple step you can take to extend their lifespan. “The critical thing is to put a pad underneath,” Mr. Head said. Most rugs do not wear out from the top, but from the bottom, where the knots rub against the floor. A pad “works as a shock absorber,” he said, keeping the knots away from hard surfaces and holding the rug in place.
Color and pattern are also important considerations. There is no point in buying a long-lasting rug if it is going to be stained by foot traffic. That means no whites or creams and no dark solid colors (think of how quickly a car with black paint appears to get dirty). Your best bet is to go with a hue somewhere in between. Search out either a solid that has specks of color in it or something with a pattern that will camouflage pet hair, spills and dirt.
Courtesy of : Tom McKEOUGH NY Times 2014
