BrightFuture
Apparel Solutions
Apparel Solutions
Leggings, trousers, and shorts follow the same basic fabric consumption formula. However, there are several methods and variations for calculating knitted bottom fabric consumption.
Body Fabric (kg/dozen) = {[(Siade Seam Length + Waistband Height + Allowance) x (1/2 Thigh + Allowance) x 4 x GSM x 12] ÷ 10,000,000 × (1 + Wastage%)}
Body Fabric (kg/dozen) = {[(Siade Seam Length + Waistband Height + Allowance) x (1/2 Thigh + Allowance) x 4 x GSM x 12] ÷ 1,550,000 × (1 + Wastage%)}
Length Formula:
Length = Side Seam + 3 cm (hem) + Waistband Height + 1 cm (sewing)
Width Formula:
Width = Thigh Measurement + 2 cm (sewing allowance)
Length Formula:
Length = Side Seam + 4 cm + (Waistband Height × 2) + 2 cm
Waistband × 2 because waistband is double folded
Width Formula:
Width = Thigh Measurement + 2 cm (sewing allowance)
Length Formula:
Length = Inseam + 3 cm (hem) + Bigger Rise + Waistband Height + 1 cm (sewing)
Width Formula:
Width = Thigh Measurement + 2 cm (sewing allowance)
Length Formula:
Length = Inseam + 3 cm + Bigger Rise + 1 cm + (Waistband Height × 2) + 2 cm
Waistband × 2 because waistband is double folded
Width Formula:
Width = Thigh Measurement + 2 cm (sewing allowance)
Formula:
Consumption (kg/dozen) = (Length × Width × 4 × GSM × 12) / 10,000,000 + Wastage %
Why multiply by 4 ?
A trouser has 4 panels: Left Front, Left Back, Right Front, Right Back
Why multiply by 12 ?
To convert per piece consumption to per dozen
Why divide by 10,000,000 ?
This is the conversion factor: (100 cm/m × 100 cm/m) × 1000 gm/kg
GSM = Grams Per Square Meter
It indicates the weight of fabric per square meter area. GSM is one of the most important factors in fabric consumption calculation.
Higher GSM
Thick, heavy fabric (winter wear, denim)
Lower GSM
Light, thin fabric (summer wear, activewear)