What is the Basic Consumption on Knit Items?
Basic Consumption on knit items, often abbreviated as CPD (Consumption per Dozen), is a measure used in the textile industry to determine the amount of fabric required for producing a specific quantity of knit items. It calculates the weight of fabric needed to produce one dozen units of a knit item based on its length, width, and GSM (grams per square meter).
Basic Consumption on Knit Items Calculator
Table of Contents
Formula:
Consumption per Dozen, CPD= L×W× GSM × 12 /1,00,00,000 kg
For Calculation, we have to follow MKS System (MKS: Meter Kilogram Second) or CGS System (CGS: Centimeter Gram Second).
How to Use the Basic Consumption on Knit Items Calculator?
- Enter the length of the knit item in meters into the “Length” field.
- Enter the width of the knit item in meters into the “Width” field.
- Enter the GSM (grams per square meter) of the knit item into the “GSM” field.
- Click the “Calculate” button to obtain the consumption per dozen (CPD) in kilograms.
- Click the “Refresh” button to clear all fields and start over.
Basic Consumption on Knit items Table [Example Purpose]
| Description | S | M | L | XL | Remarks |
| HPS (High point shoulder length) | 72 cm | ||||
| CBL (Center back length) | 70 cm | ||||
| Chest | 100 cm | ||||
| ½ Chest | 50 cm | ||||
| Armhole (20 cm + 20 cm) | 40 cm | ||||
| In armhole sewing allowance | 2 cm | ||||
| Sleeve Length | 25 cm | ||||
| In-armhole sewing allowance | 3 cm | ||||
| In sleeve side seam sewing allowance ( 1.5 cm + 1.5 cm) | 3 cm | ||||
| In bottom hem, sleeve hem & neck length seam allowance | 2 cm | ||||
| In bottom hem, sleeve hem & neck length sewing allowance | 1 cm | ||||
| Neck Length (21 cm + 21 cm) | 42 cm | ||||
| Neck Height (2cm + 2cm) | 4 cm | ||||
| In neck height sewing allowance ( 1.5 cm + 1.5 cm) | 3 cm | ||||
| In neck (Rib) sewing allowance | 2 cm | ||||
| Fabric GSM ( Body + Sleeve) | 165-170 | ||||
| Fabric GSM [Neck (Rib)] | 215-220 |
Men’s T-Shirt
Neck Height 4 cm (2+2).
Sleeve Length 25 cm
Right Sleeve →
HPSL
72 cm
CBL
70 cm
Chest
100 cm
Neck Length 42 cm (21+21)
Neck (Rib) (Sewing Allowance = 2 cm)
Neck (Rib)
Armhole 40 cm (20+20)
(Sewing Allowance=2 cm)
← Left Sleeve
Side Seam →
[Sewing Allowance = 3 cm (1.5+1.5)]
Body (Front + Back)
T-Shirt
← Side Seam
[Sewing Allowance=
3 cm (1.5+1.5)1
← Bottom Hem (Seam Allowance=2 cm
+ Sewing Allowance=1 cm)
Basic Consumption on Knit items:
Men’s T-Shirt
Points to be Considered:
A. Measurement:
1) HPSL (High Point Shoulder Length)
2) Chest or 1⁄2 chest
3) Armhole
4) Sleeve Length
B. Seam Allowance + Sewing Allowances:
C. Fabric GSM: 165~170 GSM
- Consumption per Dozen, CPD= L×W× GSM × 12 /1,00,00,000 kg
=L×W× GSM × 12 /100 × 100 × 1,000
=L × (1⁄2 Chest × 2) xGSM x12/1,00,00,000 kg
For Calculation we have to follow MKS System (MKS: Meter Kilogram Second) or CGS System (CGS: Centimeter Gram Second).
CPD (Consumption Per Dozen) for Body:
- Length = 72 cm (HPSL) + 5 cm [ In Bottom Hem Sewing Allowance = 3 cm ( Seam Allowance = 2 cm + Sewing Allowance = 1 cm ) + In Neck (Rib) Sewing Allowance = 2 cm] = 77 cm
- Width = 100 cm (Chest) + 6 cm [In Side Seam Sewing Allowance = 3 cm (1.5 cm + 1.5 cm) × 2]= 106 cm or [50 cm (1⁄2 Chest) + 3 cm {In Side Seam Sewing Allowance (1.5 cm + 1.5 cm)}] × 2 = 106 cm
CPD = L×W× GSM x 12 /1,00,00,000 kg
= 77 x 106 x 170 x 12 /1,00,00,000 kg
= 1.67 kg (Body)
CPD (Consumption Per Dozen) for Sleeve:
Sleeve Hem (Seam Allowance 2 cm →
+ Sewing Allowance = 1 cm)
Side Seam
(Sewing Allowance = 1.5 cm)
Sleeve
Side Seam
(Sewing Allowance = 1.5 cm)
Armhole 40 cm (20+20) (Sewing Allowance = 2 cm)
Sleeve Length 25 cm
Application of Basic Consumption on Knit Items:
The CPD calculation is essential for textile manufacturers to accurately estimate the amount of fabric required for producing a certain quantity of knit items such as t-shirts, sweaters, and other garments. By knowing the CPD, manufacturers can optimize their fabric usage, reduce wastage, and streamline production processes to meet demand efficiently.
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