what is duck cloth used for
Cotton duck (from Dutch: doek,  linen canvas ), also simply duck, sometimes duck cloth or duck canvas, is a heavy, plain woven cotton fabric.Duck canvas differs from plain canvas in that the threads in the former are more tightly woven. There is also linen duck, which is less often used.Cotton duck is used in a wide range of applications, from sneakers to painting canvases to tents to sandbags. Duck fabric is woven with two yarns together in the warp and a single yarn in the weft. numbering system is used to describe the various weights of duck cloth, based on the weight of a 36Ã22-inch piece. Weights below 19 ounces are called numbered duck. Those above 19 ounces are called naught duck.