Question: how to calculate fabric for ripplefold drapery?
Answer: 120” (Rod Width) X 2.2 (Rod Width Multiplier) = 264” Total width of fabric needed for the treatment. 264” (Total width of fabric needed) ÷ 54” (Width of fabric) = 4.89 Widths of fabric. Round up to 5 widths. This number is also referred to as WOM (Width of Measure).