Approx sewing thread consumption of different items
No.
|
Product name
|
Consumption
|
01
|
Basic t- shirt
|
125meter
|
02
|
Basic polo shirt
|
175
|
03
|
Tank top
|
50meter
|
04
|
Fleece/Sherpa jacket
|
250meter
|
05
|
Kids/girls dresses
|
300-450meter
|
06
|
basic long sleeve woven shirt
|
150meter
|
07
|
Basic short sleeve woven shirt
|
125 meter
|
08
|
basic long trouser/pant
|
350meter
|
Machine wise sewing thread consumption/inch
1.plain m/c
|
1 needle
|
2.5 inch
|
2.plain m/c
|
2 needle
|
5 inch
|
3.over lock
|
3 thread
|
13.25 inch
|
4. over lock
|
4thread
|
16.75inch
|
5.over lock
|
5 thread
|
18.75inch
|
6.flat lock
|
3 thread
|
16.75inch
|
7.flat lock
|
5thread
|
22.25inch
|
8.bar tack stitching
|
Per operation
|
Generally 7 inch
|
Some conversion unit
Conversion system
1 Yard = 0.9144 Meter
1 Foot = 0.3048 Meter
1 Foot = 30.48 cm
1 inch = 2.54 cm
1 Meter = 1.09 Yard
1 Meter = 3.28 Foot
1 CM = 0.032 Foot
1 CM = 0.393 Inch
1 Square Inch = 6.45 Square CM
1 Square Meter = 0.836 Square CM
3.4 Fabric Consumption Calculation for 1 dozen Men’s T-shirt:
For a Men’s T-Shirt:
a) G.S.M (Given by buyer) Body : 145-150
Neck/Rib : 175-180
b) Sewing & seam allowances (Not given by buyer) – 1.50-3cm
c) Wastage % (Not given by buyer) – 7%
d) Measurement chart (given by buyer)
Measurement Chart:
Parameter
|
Given
|
Estimated with sewing allowance
|
a) Chest
|
96cm
|
102cm
|
b) HPS
|
65cm
|
70cm
|
c) sleeve length
|
20cm
|
25cm
|
d) Arm hole
|
46cm
|
49cm
|
e) Neck
|
58cm
|
61cm
|
f) Neck width
|
2+2=4cm
|
7cm
|
g) Bottom hem
|
2cm
|
Formula:
Cpd = L x W x 12 x GSM kg
10000000
Where, Cpd = Consumption per dozen
L = Length
W = Width
A) Cpd (body) = L x W x 12 x GSM kg
10000000
= 70 x 102x 12 x 150 kg
10000000
= 1.28 kg
B) Cpd (Sleeve) = L x W x 12 x 2 x GSM kg
10000000
= 25 x 49 x 12 x 2 x 150 kg
10000000
= 0.44 kg
C) Cpd (Neck) = L x W x 12 x GSM kg
10000000
= 61 x 7 x 12 x 180 kg
10000000
= 0.092 kg
So, total Cpd = (A + B+C)
= (1.28 + 0.44 + 0.09) kg
= 1.81 kg
Actual Cpd = Total Cpd + 7% wastage
= (1.81 + 7%)
= 1.94 kg
So, the fabric consumption for men’s T-shirt is 1.94 kg per dozen.
3.5 Consumption Calculation for 1 dozen Polo shirt
Here,
a) G.S.M. (given by buyer) body 145 – 150
Collar (12pcs) 400
Cuff (12 x 2) 300
b) Sewing & seam allowance 1.50 – 3cm
c) Wastage % 7%
d) Measurement chart (given by buyer
6.2.1. Measurement Chart:
Parts Name
|
Given
|
Estimated
|
a) Chest
|
96 cm
|
102 cm
|
b) HPS
|
65 cm
|
70 cm
|
c) Sleeve length
|
20 cm
|
25 cm
|
d) Arm hole
|
46 cm
|
49 cm
|
e) Collar length
|
46 cm
|
46 cm
|
f) Collar width
|
7 cm
|
10 cm
|
g) Cuff length
|
26 cm
|
10 cm
|
h) cuff width
|
3 cm
|
5cm
|
A) Cpd (body) = L x W x 12 x GSM kg
10000000
= 70 x 102x 12 x 150 kg
10000000
= 1.28 kg
B) Cpd (Sleeve) = L x W x 12 x 2 x GSM kg
10000000
= 25 x 49 x 12 x 2 x 150 kg
107
= 0.44 kg
C) Cpd (Collar) = L x W x 12 x GSM kg
107
= 46 x 10 x 12 x 400 kg
107
= 0.22 kg
C) Cpd (Collar) = L x W x 12 x GSM kg
107
= 46 x 10 x 12 x 400 kg
107
= 0.22 kg
D) Cpd (Cuff) = L x W x 12 x 2 x GSM kg
107
= 30 x 5 x 12 x 2 x 300 kg
107
= 0.108 kg
So, total Cpd= A + B + C + D
= (1.28 + 0.44 + 0.22 + 0.108) kg
= 2.05kg
Actual Cpd = 2.05 kg + 7%
= 2.19 kg
So, fabric consumption for 1 dozen polo shirt is 2.19 kg.
Consumption calculation for 1 dozen Trousers:
For Trouser,
a) G.S.M. (given by buyer) 180 - 250
b) Sewing & seam allowance 1.50 – 3cmc) Wastage % 7%
Parts Name
|
Given
|
Estimated
|
a) Waist
|
112 cm
|
114 cm
|
b)Side seam (length)
|
107 cm
|
114 cm
|
c) Thigh (width
|
66 cm
|
72 cm
|
d) Front rise
|
28 cm
| |
e) Back rise
|
36 cm
| |
f)Leg Opening (bottom)
|
46 cm
|
Measurement Chart:
Cpd = L x W x 12 x GSM kg
107
= 114 x 2 x 72 x 12 x 200 kg
107
= 3.93 kg
Actual Cpd = (3.93 + 7%) kg
= 4.2 kg
So, fabric consumption for 1 dozen Trousers is 4.2
Result and discussion
Cost a price for 1 dozen T- shirt:
Pre-requisites:
Unit price Costing
1. Fabric consumption 2 kg/dz $5.0/kg $10/kg
2. Accessories $2/dz $2/dz
3. CM (cost of manufacturing) $2/dz $2/dz
Total $14
A) Direct cost (raw materials) = $14.0
B) Indirect cost (15% to 20% of direct cost)
Indirect cost = $14.0 x 20%
= $2.8
Total = $14.0 + $2.8
= $16.8
C) Profit @5% = $16.8 x 5%
= @0.84
Therefore, total cost = $16.8 + $0.84
= $17.64
= $18
So, the cost for 1 dozen mean’s T-shirt is $18
Cost a price for 1 dozen Polo shirt:
Pre-requisites
Unit price Cost
1. Fabric consumption 2.7 kg/dz $5.0/dz $13.5
2. Accessoires $2.5/dz $2.5
3. CM $4-6/dz $5
Total $21
A) Direct cost (raw material) = $21
B) Indirect cost = 15% - 20% of direct cost
= $21 x 20%
= $4.2
Total cost = A + B
= $21 + $4.2
= 25.2
C) Profit at 5% = $25.2 x 5%
= $26.46
= $26.5
The total cost for 1 dozen polo shirt is $26.5
Cost a price for 1 dozen Trousers:
Pre-requisites
Unit price Cost
1. Fabric consumption 4.2 kg $5.0/dz $21
2. Accessories $3.5/dz $3.5
3. CM $4-6/dz $5
Total $29.5
A) Direct cost (raw material) = $21
B) Indirect cost = 15% - 20% of direct cost
= $21 x 20%
= $4.2
Total cost = A + B
= $21 + $4.2
= $33.2
C) Profit at 5% = $33.5 x 5%
= $35.18
= $35.18
The total cost for 1 dozen polo shirt is $35.18
