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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.

Calculating Formula

Where

  • T = thickness of fabric (in.)
  • Y = linear yards of fabric
  • C = core diameter (OD)

Example:

  • Style 7628, Greige
  • 1500 yards
  • 4” core
Calculation Example

Core Diameter

Style Altercation Chart

The following chart gives the general direction of changes in certain fabric characteristics when the construction is altered. These relationships may not always apply; however, the magnitude of the change would be negligible.

What Happens To:

+ = increase, – = decrease, 0 = no change

1 = lowest cost, 1 = least thick, 1 = lightest, 1 = weakest, 1 = closed
7 = highest cost, 7 = thickest, 7 = heaviest, 7 = strongest, 7 = open