Woven Pant Consumption Formula

Woven Pant Consumption Formula

Woven Pant

Mathematical formula to calculate the fabric consumption of Woven pant in yard is as follows: Formula : (Length X Width) / (Fab width X 36) Note: We must add sewing allowance 2" and 3% wastage. Also We need to know the width of the fabric roll. Now let us calculate the fabric consumption of a Woven/Denim pant in yard.

Meas point

Meas in inch

Sewing allowance

Total

Waist

34

2

36

Hip

46

2

48

Thigh

28

2

30

Bottom

18

2

20

Length

44

2

46

Suppose, fabric width is 56” As per formula the consumption is as follows: =[{(34+46)/2}+{(28+18)/2}X44]/(56*36) =3082/2016 =1.52 *Need to add 3% Wastage =1.57 yds/pc =19.46 yds/dzn

Note: **Why 36? Ans: 1yard=36 inch. To convert inch into yard. **Why 56? Ans: The width of fabric roll. It may vary.

Consumption and chart: 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 Meter

=

1.09 Yard

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 f) Neck width g) Bottom hem

58cm

61cm

2+2=4cm

7cm

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 10000000 = 0.092 kg

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

Collar (12pcs)

400

Cuff (12 x 2)

b) Sewing & seam allowance

c) Wastage %

145 – 150

300

1.50 – 3cm

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 300 107 = 0.108 kg So, total Cpd= A + B + C + D = (1.28 + 0.44 + 0.22 + 0.108) kg = 2.05kg

kg

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 c) Wastage %

1.50 – 3cm

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 1. Fabric consumption 2 kg/dz 2. Accessories

Costing

$5.0/kg

$10/kg

$2/dz

3. CM (cost of manufacturing)

$2/dz

$2/dz

$2/dz

Total

A) Direct cost (raw materials)

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

= $14.0

$14

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 1. Fabric consumption 2.7 kg/dz

$5.0/dz

2. Accessoires

$2.5/dz

3. CM

$4-6/dz Total

A) Direct cost (raw material) B) Indirect cost

Cost $13.5

$2.5

$5 $21

= $21 = 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

2. Accessories

$3.5/dz

3. CM

$4-6/dz Total

A) Direct cost (raw material)

B) Indirect cost

$21

$3.5

$5 $29.5

= $21

= 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

Woven Bottom: Details Formula of Consumption (part 2)

Publishing from the comments (Part 2)

tamimApr 10, 2012 04:15 AM Dear Bipul Vhai Seeking for you kind permission, would you pls allow me to share in details about the “Woven bottom consumption ” for those who send request regarding this issue in your blog

( For those only who need this ) In Apparel sector there are 2 types of Merchandise, One is Woven merchandise ( Such as Shirt , Pant , Blouse etc ) & the other one is Knit merchandise ( Circular Knit :- Tee shirt , Polo shirt ,Fashion knit :- Sweater Etc ) . Merchandiser is the key person of this sector, who communicates with Buyer or Buying house to get an Order. The procedure of getting an order from a buyer, merchandiser got an inquiry directly from a Buyer or from a Buying house. In that inquiry buyer ask for price of his desired garments, it may be in Woven fabric or In Knit fabric. For quote a price, merchandiser must calculate fabric consumption first, coz fabric price cover more than 60 % of that quoted Price. As a Merchandiser, for any type of Garments Consumption calculation, first we have to know what type of garments we are going to make. For that, we need to know the specific parts name & the measurement of that particular garments parts. Measurement may be in inch or in centimeter (Measurement in Inch for American order & Centimeter for European order). That’s need to calculate consumption. For accurate measurement we need to make a “Paper pattern “ or “CAD pattern “ first . pattern is the sketch combination of different parts of a garments . We all know every part of garments have its LENGTH & WIDTH measurement. Basically on woven garments, we calculate the consumption in Yard/ Doz (2.54 Cm= 1 inch & 36 inch = 1 Yds,). In that case we also need to know the Width of that particular fabric which we are going to use. Now we will calculate each of the separate part based on this Length & Width. to have the total consumption, for this we can use Separate part formula as below:(LENGTH X WIDTH) X Number of Parts pcs or Panels / Fabric Width (Pls consider suitable sewing allowance with each length & width for each application.) After calculate the consumption of all t part this way, now we will add all that separate parts consumption tighter ,than we will add wastage percentage based on the fabric nature which we are going to use for that particular garments. We can also workout the consumption of a bottom item by using the below “Solid formula for calculate consumption" Solid formula for calculate required Fabric consumption / Doz :(Total LENGTH X Total WIDTH ) X Number of Parts pcs or Panels / Fabric Width X36 inch = (Total + 5 % Wastage) X 12 Pcs= Result in ..Yds / Doz . In here

Total Length = Inseam (Length) + Back rise (Including West band ) + Sewing Allowance (S.A ) Total Width = ½ Thai + Sewing Allowance ** we can also calculate ( A) Back rise without West band ( B) Parts pcs = there is 4 pcs of 1/2 Thigh as a bottom item has 2 Leg (C) We multiply the total measurement with 36 inch to make the result in yds which was in inch before ( D) For wastage percentage the calculation depends on the nature of fabric shrinkage or elongation on wash & others effect **{We calculate this wastage percentage lowest ( 5 % ) on Regular fabric but for Stretch fabric it may stand up to 25 % based on the nature of the Fabric}

To be continueReply

tamimApr 10, 2012 04:19 AM Dear Bipul Vhai Seeking for you kind permission, would you pls allow me to share in details about the “Woven bottom consumption ” for those who send request regarding this issue in your blog (Rest part of previous Discation ) For batter understanding we can follow below Example : Say we have the bellow measurement of a "Basic Denim long pant" :Inseam = 34 inch, ½ Thai= 13 inch, Back rise (Under West Band) =15 Inch Waist band width =1.5 inch, Back pocket length = 7 inch, Back pocket Width = 6.5 inch Belt Loop length =1.5 inch, Belt Loop Width = 1/2 inch Pocket Bag Length = 7.5 inch Pocket Bag Width = 6.5 inch The Formula is :- ( Length X Width ) X No of panel / ( Fabric Width X 36 inch ) + Wastage Percentage = Result X12 Pcs Calculation: - In Here Total Bottom Length = Inseam + Back rise + Wbw + Sewing allowance.( Wbw =West band width ) Total Bottom Width = 1/2 Thigh +2“ Sewing allowance So, Length = 34+15 + 1.5 *2 +3 = 55 Inch. Width = 13 +2 =15 Inch Say the actual Fabric Width is 58 inch, but when sewing a garments as we can’t use the edge of a fabric , so at the time of calculation we must deduct 1 Inch from the fabric width . I.e. fabric width will be 57 Inch.

Now the Applicable Formula :-

( Length X Thigh ) * 4 part /( Fabric Width X 36 inch) = Result + 5 % Wastage = Result for 1 Pc X12 pcs = Yds / Doz Based on above information we found Main Fabric Consumption :- (55 Inch X 15 Inch) X 4 Pcs /57 inch X 36 Inch + Wastage 5% X 12 Pcs =( 3300 square inch / 2052 square inch )+ 5% Wastage X 12 Pcs = {1.61 Yds +0.08(Wastage)} X 12 Pcs = 1.69 Yds X12 Pcs = 20.28 Yds /Doz. Back Pocket Consumption = (7”X 6.5 )=44.5 X 2 pc / 57 X 36 =91 /2052 =.044 +.0022=.047 X12 Pcs = 0.56 Yds / Dz Belt loop Consumption = (1.5”X .5 ) = .75 X 6 pc / 57 X 36 =4.5 /2052 =.0022 +.0001=.0023 X12 Pcs = 0.028 Yds / Dz Total Fabric =20.28 yds +0.56 Yds+0..28 Yds = 20.84 Yds / Dz For Pocketing Fabric :- Length =7 .5 inch X 2 Ply +1 inch (SA )=( 15+1) inch = 16 inch Width = 6.5 inch X 2 Ply + 1 inch (SA )= 14 inch = ( 16 inch X 14 inch )2 pcs /(43 inch X 36 inch) = 448/1548 =.29+5% wastage=.28+.0145=0.30X 12 Pcs =3.65 Yds Per

So we can say, based on above measurement we need 20.84 Yds main fabric & 3.65 Yds pocketing fabric to make 12 Pcs Basic long pant. this way we can calculate fabric consumption for any quantity Caution :- Friends pls keep in mind that as market is so competitive now a days , so when a buyer ask for a price quotation no matter how experience you are but pls don’t take any risk. Always figure out practical consumption by the help of your Pattern master & believe me that will be the perfect for your organization.

Thanking you on be half of Mr.Bipul (The owner of this Blog ) Md. Tahidul islam Talukder ( Tamim) Sr. Merchandiser True Lotus Inc.

Woven Bottom: Details Formula of Consumption (Part 1) Publishing from the comments (Part 1)

Tanin Mar 13, 2012 01:58 AM Hi Bipul, can you pls advise the woven bottom consumption details formula. i'm confused on several way of making consumption as i knew the below like as; Consumption example: Inseam = 58 Back rise= 27 ------------------------------------= 0000 (+) W/b 4x2+allowance = 12 -------------------------------------= 0000 ÷ 2.54(convert to inch) = result 40” Thigh = 20 × 4(part) =80 ÷ 2.54(convert to inch) = result 37” Total: L × W= ans ÷ 36 yds ÷ 56/58//60 (fab width) × 12 dzs × extra 10% = result Fab consumption Replies

tamim Apr 8, 2012 09:00 AM Dear Bipul Vhai Asking for you kind permission to solve Mr. Tanin confusion regarding his computed Woven Bottom item formula on your blog comments box ..... Mr Tanin wrote as under ....... Hi Bipul, can you pls advise the woven bottom consumption details formula. i'm confused on several way of making consumption as i knew the below like as; Consumption example: Inseam = 58 Back rise= 27 ------------------------------------= 0000 (+) W/b 4x2+allowance = 12 -------------------------------------= 0000 ÷ 2.54(convert to inch) = result 40” Thigh = 20 × 4(part) =80 ÷ 2.54(convert to inch) = result 37” Total: L × W= ans ÷ 36 yds ÷ 56/58//60 (fab width) × 12 dzs × extra 10% = result Fab consumption Reply of Mr.Tanin Dear Mr. Tanin First you asked for Woven bottom garments Details formula & we think the formula given above by Bipul bhai is the unique formula ,based on that i will explain details formula .But before that pls find the answer of you question last part In your Consumption example: Inseam = 58 cm Back rise= 27 cm (excluding west band ) -------------------------------------

length = 85 cm (+) W/b 4 cm x2 part ( inside & out side )+allowance 4 cm= 12 cm -------------------------------------= 97 cm ÷ 2.54(convert to inch) = result not 40” it will be 38.19 we can consider it as, Total Length is 38 inch. Thigh = ½ thai of one leg 20cm × 4(part.. as Two leg has 4 pc ½ Thai ) =80 cm ÷ 2.54(convert to inch) = result not 37” it will be 31.496 we can consider it 32 inch Now you can calculate it using your below formula Total: L × W= ans ÷ 36 yds ( it will be inch ) ÷ 56/58//60 ( consider any one of this fab width ) × 12 dzs( it will be Pcs ) ×( not multiply X , Pls add the percentage + ) extra 10% = result Fab consumption....

Total: L = 38 inch × W = 32 inch = ans 1216 squre inch ÷ 36 inch ÷ say it is 56 inch (fab width) × 12 pcs + extra(wastage as per nature of fabric ) 10% = result Fab consumption Total: 1216 square inch ÷ ( we can calculate it like this 36 inch X 56 inch (fab width)= total × 12 pcs + extra(wastage as per nature of fabric ) 10% = result Fab consumption Total: 1216 square inch ÷ 2016 square inch = 0.60 yds per pc × 12 pcs = 7.24 yds /doz + extra 10% .72 yds = final result for Fab consumption is 7.96 (7.24+.72) Yds /Dz . Hope you are clear now ..

Tanin Apr 9, 2012 12:36 AM Dear Mr. Tamim, First of all I'd like to thank you very much for your reply as well for below correction.... 1) yes back rise excl band. 2) thigh part to be as per your consumption 32 inch. 3) Extra percentage will not multiply s/be (+). Can you pls advise me the actual formula for woven fabrics consumption with details example. Thanks/ Tanin