In short
- Fabric and trim consumption drives most garment cost, so consumption accuracy matters more than any negotiation.
- Job-work charges for dyeing, printing and stitching belong in style cost as the work happens, not when the invoice lands.
- Yarn and cotton price movement can turn a profitable style loss-making between quotation and shipment.
- Margin should be visible per style and per buyer, not only at company level.
Where knitwear cost actually sits
For a knitted garment, the bought-in content dominates. Yarn or fabric, trims, and the job-work charges for dyeing, printing and sometimes stitching together account for the large majority of unit cost. Sewing labour, which receives most management attention, is a smaller share.
This has a practical implication: consumption accuracy and material price control move margin more than squeezing the sewing rate. Yet costing in many Tiruppur units still runs on a spreadsheet built once per style and rarely revisited when yarn prices move.
Consumption is the foundation
A style cost is only as good as its consumption. Fabric consumption per garment, by size and colour, drives the largest cost line, and small errors compound across a large order. A structured style BOM with consumption, described on our garment ERP page, is what makes costing defensible.
| Cost line | What drives it |
|---|---|
| Fabric / yarn | Consumption per garment, GSM, wastage |
| Dyeing & processing | Job-work rate per kg and shade |
| Trims & accessories | Consumption per garment |
| Printing / embroidery | Job-work rate per piece |
| Cutting & sewing | SAM and line rate |
| Packing & docs | Ratio pack and carton cost |
Get consumption right and the rest of the sheet becomes reliable.
See how this runs on your own styles, order to export carton.
Job work belongs in the cost as it happens
Dyeing, printing and outside stitching are integral to the Tiruppur model. If those charges are only captured when the job-work invoice arrives, style cost lags reality by weeks. Better practice is to attach the expected job-work rate to the operation so cost accrues as the work happens, then reconcile against the vendor invoice. Our dyeing and processing page covers how this is tracked.
Yarn price movement is the silent risk
Cotton and yarn prices move, and a style quoted three months ago may no longer be profitable at shipment. The defence is not clairvoyance, it is speed: when the yarn rate changes, every affected style cost and open quotation should recalculate so you can see which styles moved below target margin immediately.
Practically this means holding yarn rates centrally and linking them to style costs, so a rate change flows through in minutes rather than requiring every sheet to be reopened by hand.
Want a fixed-scope ERP plan for your Tiruppur unit?
Margin per style and per buyer
The number most likely to change commercial behaviour is margin by style and by buyer. Exporters computing this properly for the first time frequently discover that styles they actively pursue, or buyers they prioritise, make far less than assumed once material cost has drifted while the price has not.
Revenue against rolled-up actual cost, per style and per buyer, turns pricing from a habit into a decision. It also informs which enquiries are worth chasing, a theme our ERP selection guide touches on.
Building a defensible costing process
- Cost from a structured style BOM with real consumption, not a memorised sheet.
- Attach job-work rates to operations so cost accrues as work happens.
- Hold yarn and fabric rates centrally and recalculate on movement.
- Add a wastage and rejection allowance so cost is per good garment.
- Review margin by style and buyer, and act on the styles that lose money.
None of this is sophisticated. It is the difference between costing as a one-off sheet and costing as a live process.
Key Takeaways
- Material and job work dominate garment cost, so consumption accuracy beats negotiating the sewing rate.
- A structured style BOM with consumption is the foundation of defensible costing.
- Accrue job-work charges as the work happens, not when the invoice lands.
- Hold yarn rates centrally so a price movement recalculates every affected style in minutes.
- Review margin per style and per buyer, and drop or re-price the styles that lose money.
Frequently Asked Questions
Bought-in content: yarn or fabric, trims and job-work charges for dyeing, printing and stitching. Sewing labour is a smaller share, which is why consumption and material price control matter most.
Because it drives the largest cost line and small per-garment errors compound across a large order. A structured style BOM with consumption is what makes the cost defensible.
Attach the expected rate to the operation so cost accrues as the work happens, then reconcile against the vendor invoice. Otherwise style cost lags reality by weeks.
Update the central yarn rate and every affected style cost and open quotation recalculates, so you can see which styles moved below target margin immediately.
Yes, once costs are rolled up per style and linked to orders. Revenue against actual cost per style and per buyer often reshapes which enquiries you chase.
Add a wastage and rejection allowance so the cost is per good garment rather than per garment started, which reflects what actually ships.
For a single style, briefly. Across many styles and moving yarn prices, a spreadsheet costed once and rarely updated is where margin quietly leaks.
With consumption and rates held centrally, a quotation is built from the style BOM in minutes at a known margin, rather than reconstructed by hand.
It should. Costing feeds the quotation, and the won order carries the costed BOM into production, so planned and actual cost can be compared.
Conclusion
Costing is the highest-leverage financial activity in a knitwear export business, and often the least systematised. The gains do not come from hard bargaining; they come from accurate consumption, job-work charges captured as they happen, and yarn rates held centrally so a price movement is visible immediately. Put margin by style and by buyer in front of leadership and the loss-making styles surface on their own. Do that and you quote margin you can actually hold, even when cotton moves week to week.
Want to quote margin you can actually hold?
Talk to our Tiruppur team, or book a free demo and see it on your own style BOM.