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How to Calculate Drapery Weight

Please follow the guidelines below when calculating drapery and fabric weight.

Fabric Weight

Some fabric samples list on the back of the swatch the weight listed in Ounces/SqYd (ounces per square yard). Call the manufacturer for the weight if not listed.

Lining Weight

Most drapery linings are 2oz - 4oz per square yard.

Calculating Drapery and Fabric Weight

Use the formulas to calculate the drapery and fabric weight.

Drapery Weight Formula

Total Square Yards = (total yards x 36 x fabric width) ÷ 1296 (1 - square yard)
Weight = (total square yards x weight in ounces per SqYd) ÷ 16 oz in lb
Example
  • 32 yards of 54" wide fabric weighing 14 oz/SqYd
  • Total square yards = (32 x 36 x 54) = 62,208 ÷ 1296 = 48 SqYds
  • Weight = (48 x 14oz) = 672 ÷ 16 = 42 lbs

Lining Weight Formula

Total Square Yards = (total yards x 36 x fabric width) ÷ 1296 (1 - square yard)
Weight = (total square yards x weight in ounces per SqYd) ÷ 16 oz in lb
Example
  • 32 yards of 54" wide fabric weighing 6 oz/SqYd
  • Total square yards = (32 x 36 x 54) = 62,208 ÷ 1296 = 48 SqYds
  • Weight = (48 x 4oz) = 192 ÷ 16 = 12 lbs

Fabrics by Weight

Contact the fabric manufacturer for your specific fabric weight.

Fabric Type Weight per Square Yard
Drapery Lining 2-4 oz
Interlining 5-6 oz
Blackout Lining 6-10 oz
Bump Lining 12-14 oz
Silks 2-4 oz
Chintz 2-4 oz
Printed Cottons 4-6 oz
Linens 6-10 oz
Jacquards 10-14 oz
Velvets 14-18 oz

Credit: Kirsch

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