Fryetts Fabrics & Porter & Stone curtain fabrics. Fryetts curtain fabric is one of the UK's leading converters and manufacturers of furnishing fabrics, supplying quality multiple and independent retailers, upholstery producers and many other organisations involved in the soft furnishings industry with curtain materials. Porter & Stones curtain fabrics aim is to provide high-quality bespoke curtain fabrics. The Porter and Stone range include woven viscose chenille and embroidered pure silk fabrics.