Since 1980, Anderson Fabrics has served the professional interior design industry from its custom workroom. The company s range of custom designed products includes draperies, valances, shades, quilted bedspreads, table linens and other fabric accessories. Established as the largest workroom of its kind in the United States, the company operates from a more than 135,000-square-foot facility. Anderson Fabrics manufactures a range of custom products from its workroom based in Blackduck, Minn.