How will your upholstered pieces be used in your home? Sofas, chairs, and ottomans receiving only moderate amounts of wear will do fine with a less durable fabric.
However, pieces subjected to daily heavy wear need to be covered in tough, durable, tightly woven fabrics.
When purchasing an upholstered piece or upholstery fabric, be aware that the higher the thread count, the more tightly woven the fabric is, and the better it will wear. Thread count refers to the number of threads per square inch of fabric.