Fabric Drape Coefficient Calculator

Calculate fabric drape coefficient from Cusick drape test measurements to assess how fabric hangs and flows.

Sample Diameter

Support Disc Diameter

Draped Shadow Diameter

Fabric Weight

GSM

Fabric Thickness

Tab to move between fields

Drape Coefficient

32.77%

Drape ClassificationLimp (Soft)

Bending Rigidity (est.)1.56

Estimated Nodes5

How to Use This Calculator

Enter Sample Diameter, Support Disc Diameter, and Draped Shadow Diameter.
Set Fabric Weight and Fabric Thickness.
Review the Drape Coefficient (%) result.
Use Drape Classification and Bending Rigidity (est.) to inform your decision.
Use the chart to visualize the results and explore different scenarios by adjusting inputs.

How the result changes with Draped Shadow Diameter

Sample Diameter: Diameter of the circular fabric sample
Support Disc Diameter: Diameter of the support disc (typically 12.5 cm)
Draped Shadow Diameter: Average diameter of the draped fabric shadow projection
Fabric Weight: Fabric weight in grams per square meter
Fabric Thickness: Measured fabric thickness in millimeters

Identify Input Parameters
4 parameters
Sample Diameter = 30, Support Disc Diameter = 12.5, Draped Shadow Diameter = 20, Fabric Weight = 150 = 5 input(s) provided
Calculate Drape Coefficient
Drape Coefficient
32.77 = 32.77
Calculate Drape Classification
Drape Classification
Limp (Soft) = Limp (Soft)
Calculate Bending Rigidity
Bending Rigidity
1.563 = 1.563

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