Basic T-Shirt fabric consumption system

As we know, fabric consumption is the most important factor in apparel industry. Garment factory is set for profit generation. Most of the time, profit or loss depend on the total consumption of fabric in an order. In this case, we should calculate accurate consumption before starting bulk cutting of an order. In garments industry, there are two major methods used to calculate the fabric consumption. Those methods known as Marker making method and Mathematical method. You don’t need to worry for bulk consumption because buyer will be confirmed;
  • Types of fabric
  • Fabric GSM
  • Measurement sheet or spec. sheet of the style. 
Basic T-Shirt

Spec sheet for men’s T-shirt:
Suppose, buyer has provided bellow measurement sheet, fabric type & GSM for a basic T-shirt project. If you wan to know about fabric consumption then check the below articles;
M-list for Basic T-Shirt

Size range 9298/104110/116122/128134/140146/152
1. Half chest (1/2 chest)31 cm32.8 cm34.8 cm36.6 cm40 cm43.4 cm
2. Half bottom (1/2 bottom)31 cm32.8 cm34.8 cm36.6 cm40 cm43.4 cm
4. Body length from shoulder (BL)38.5 cm42.5 cm47 cm51.5 cm56 cm61 cm
5. Sleeve length (SL)31.4 cm34.2 cm38.5 cm45.8 cm51.1 cm55.4 cm

Fabric: Jersey Knit
Item: Basic men’s s/slv T-shirt
Size: 122/128
Fabric weight = 150 GSM
BL = Body length from shoulder = 51.5 cm
SA = Seam Allowance = 5 cm
SL = Sleeve length = 45.8 cm
SA = Seam allowance = 5 cm
½ Chest = 36.6 cm
SA= Seam allowance = 4 cm
TF = Trim fabric (Neck rib/binding) = Neck rib consumption 0.20 kg/Doz.

Fabric consumption formula for T-shirt / Doz.:
{(BL + SA + SL + SA) x (1/2 chest + SA)} x 2 x GSM / 100,00,000 + 8% (Wastage and extra cutting) x Doz. + TF
= {(51.5 + 5 + 45.8 + 5) x (36.6 + 4)} x 2 x 150 / 100,00,000 + 8% x 12 + 0.20
= 1.894 kg / Doz.



Finally note that, using above formula we will get only fabric weight that is consumed by a garment. In the above formula, it didn’t include marker loss, fabric loss due to fabric width and fabric wastage (like dying loss, finishing loss etc.). When we purchase fabric we have to consider all of those parameter.