What is a "Double Rub"?
Fabric durability and strength is determined by how it rates on the double rub test (sometimes referred to as the Wyzenbeek Test), which is a back and forth motion that approximates wear and tear on upholstery. With average home use, about 3,000 double rubs equals one year of abrasions.
Heavy Duty: Fabrics scoring over 25,000 double rubs are ideally suited for high use situations such as living and family room sofas, chairs, and recliners, accent pillows, ottomans, headboards, and dining room chairs.
Medium Duty: Materials passing at 15,000 to 25,000 double rubs are also suitable for upholstery, however do not withstand long term wear. Medium duty fabrics are perfect for upholstery situations that receive less than average use, such as occasional chairs, headboards, and non-upholstery uses such as bedspreads, duvet covers, accent pillows, and draperies.
Light Duty Fabrics: Passing at 3,000 -15,000 double rubs, light duty fabrics are ideal for extremely low use upholstery and draperies.