Determining Roll Diameter

The following is an approximate formula for determining the diameter of a roll of fabric. The formula generally underestimates roll diameter for fabrics with texture or some specialty yarns. Also, actual diameters can vary at different take-up tensions.

determining the diameter of a roll of fabric

                             T = thickness of fabric (inches)
Where,                 Y = linear yards of fabric
                             C = core diameter (OD)

                              Style 7628, Greige
Example:              1500 yards
                               4″ core

techRefRollEq2