Consumption is the very important issue in apparel industry. If fabric consumption deviates of any garment then manufacturer will not get order for the target price. So fabric price is bearing almost 34% to 45% of the total garments cost. If fabric consumption is wrong calculation then total garments cost will wrong calculation. It will higher quotation that the target price. On the other hand if consumption less then manufacture will loss this order. When anybody offer price to customers then you can cheek properly your own way. I will explain mathematical term to apply & how to find out easily fabric consumption. Hopefully, it will be helpful for your easy understanding about fabric consumption.
First of all we want to know fabric details for consumption.
- Composition
- Fabric width & Cut able width
- Shrinkage
Given
Fabric: 100% Cotton
Shrinkage: L3%X W 4%
Fabric Cut able width=56”
1Yardage=36”
We will consider as Mathematical term for consumption
Consumption formula: Body Length X1/2 Chest
Fabric Cutable width X 36”
- Now, we will calculate Body length
Length= (Body Length from HPS+ Hem Height +Allowance)
=26”+ 2”+1”
=29”
Width=1/2 Chest+ Allowance
We will calculate Width
Width=Chest 1” down from Armhole +allowance
=41”+1”
=42”
Now, we will consider as shrinkage
Length=29”X3%=29.87”
Width=42”X4%=43.68”
So, we will apply formula for Body fabric Consumption
(Length X Width)X2 (for both parts)
56”X36”
29.87”X43.68X 2
56”X36”
= 1.29 Yds
Now, we will consider as wastage 5% for fabric
=1.35 yds
- Now, we will calculate long Sleeve Consumption
Length= (Muscle 1” below Armhole+ Allowance)
=13.25”+1”
=14.25”
We will calculate Width
Width= Sleeve length from top of sleeve+ Allowance
=24”+1”
=25”
Now, we will consider as shrinkage
Length=14.25”X3%=14.67”
Width=25”X4%=26”
So, we will apply formula for long sleeve fabric Consumption
(Length X Width)X2 (for both parts)
56”X36”
(14.67”X26)X 2
56”X36”
= 0.37 Yds
Now, we will consider as wastage 5% for fabric
=0.39 yds
- Now, we will calculate Cuff Consumption
Length= (Sleeve opening closure+ Allowance)
=9”+1”
=10”
We will calculate Width
Width= Cuff Height
=1.625”
Now, we will consider as shrinkage
Length=10”X3%=10.30”
Width=1.625”X4%=1.69”
So, we will apply formula for cuff fabric Consumption
(Length X Width)X2 (for both parts)
56”X36”
10.30”X1.69X 2
56”X36”
= 0.018 Yds
Now, we will consider as wastage 5% for fabric
=0.018 yds
- Now, we will calculate placket Consumption
Let- Placket length =21”
Length= (Placket length +Allowance)
=21”+1”
=22”
We will calculate Width
Width=1.625”
Now, we will consider as shrinkage
Length=22”X3%=22.66”
Width=1.625”X4%=1.69”
So, we will apply formula for placket fabric Consumption
(Length X Width)X2 (for both parts)
56”X36”
(22.66”X1.69)X 2
56”X36”
= 0.037Yds
Now, we will consider as wastage 5% for fabric
=0.039 yds
- Now, we will calculate collar Consumption
Length= (collar length out side to side edge +Allowance)
=19.50”+1”
=20.5”
We will calculate collar height
Width=3”
Now, we will consider as shrinkage
Length=20.5”X3%=21.11”
Width=3”X4%=3.12”
So, we will apply formula for collar fabric Consumption
(Length X Width)X2 (for both parts)
56”X36”
20.5”X3.12X 4
56”X36”
= 0.12Yds
Now, we will consider as wastage 5% for fabric
=0.126 yds
- Now, we will calculate pocket Consumption
Length= (Pocket length +Allowance)
=5”+1”
=6”
We will calculate pocket height
Width=5+1”=6”
Now, we will consider as shrinkage
Length=6”X3%=6.18”
Width=6”X4%=6.24”
So, we will apply formula for pocket fabric Consumption
(Length X Width)X4 (with flap for both parts)
56”X36”
(6.18”X6.24)X 4
56”X36”
= 0.07Yds
Now, we will consider as wastage 5% for fabric
=0.0735 yds
So, total consumption of a long Sleeve Jacket=
Body +Sleeve +Cuff +Placket +Collar +Pocket
=1.35+0.39+0.0189+0.039+0.126+0.0735
=1.97 yds/pc
If we will consider per doz
=1.97X12
=23.72 yds
Total consumption for long sleeve jacket 1.97 yds/pc
Total consumption per doz 23.72 yds/doz
Md.Mahbub-Ul Islam
RMG Consultant
mahbub.islam54@gmail.com
