Fabric Wastage in the Cutting Room: How Small Factories Lose 3 to 8 Percent

A small knit garment factory typically loses 3 to 8 percent of its fabric in the cutting room over and above planned allowances. Fabric is 60 to 70 percent of the cost of a knitted garment, so this leak is often larger than the factory's net margin on the same lot. Most owners never see it because fabric goes to the cutting table in kilograms and comes back as garments, and nobody reconciles the two. This is how the fabric disappears in a small knitwear unit, and how to measure it with nothing more than a weighing scale and a notebook.

Where does fabric actually go missing in the cutting room?

The fabric leaks through six routes: end loss at both ends of every ply, end bits too short for another lay, splicing overlap when a roll finishes mid-lay, width variation between rolls laid under one marker, GSM drift that makes every metre heavier than costed, and cut panel rejects from holes or stains found after cutting. Each one looks small on its own. End loss is a few centimetres per ply, but a 60-ply lay repeated across a lot turns centimetres into full garments. End bits vanish fastest because no one weighs them, and in most small units they are swept into a corner and sold as chindi at waste rates. The factory paid combed cotton prices for that fabric and recovered rag prices.

What marker efficiency should a knitwear factory expect?

A mixed-size marker on knit fabric should run 80 to 88 percent efficiency, meaning 12 to 20 percent of the marker area is unavoidable gaps between patterns. Single-size markers waste noticeably more because same-size patterns nest poorly, which is why combining three or four sizes in one marker is the cheapest wastage reduction available. The number on the marker is only the starting point though. Real utilisation is always lower than marker efficiency because end loss, splicing and end bits are added on top of it. A factory quoting 85 percent marker efficiency but never measuring the rest is only tracking half the story.

How do you measure fabric wastage without any software?

Run a lot-wise reconciliation: weigh the fabric issued to cutting, then account for it in four buckets - garments cut multiplied by average panel weight, fabric returned to store, end bits weighed per lot, and the unexplained gap. The gap is your invisible wastage, and the first time a factory runs this exercise the gap is usually the most uncomfortable number in the building. It takes one person twenty minutes per lot with a weighing scale. Do it per width group, not per lot total, because mixing 34 inch and 36 inch rolls under one marker hides exactly the loss you are trying to find. A fabric consumption calculator gives you the expected per-piece weight to reconcile against.

What does a 2 percent fabric saving actually mean in rupees?

Take a 3,000 piece T-shirt lot and assume 0.30 kg of 180 GSM fabric per piece and Rs. 500 per kg for dyed combed cotton single jersey - round numbers, swap in your own consumption and rate before you trust the total. That lot carries 900 kg of fabric and a fabric bill of Rs. 4,50,000. Two percent saved is Rs. 9,000 on the lot, and a unit cutting four such lots a month keeps Rs. 36,000 a month, over Rs. 4.3 lakh a year, without buying a single machine. The arithmetic holds at any scale, and a 2 percent fabric saving usually beats a month of price negotiation with the yarn supplier.

Which habits reduce cutting wastage fastest?

Three habits pay back within the first month. First, group rolls by width before spreading and make width-wise markers, because a marker planned for 36 inch fabric laid on 34 inch rolls silently loses 5 percent of every metre. Second, weigh end bits per lot and write the number down, since the moment end bits are measured they stop disappearing and start becoming caps, bibs and pocket linings. Third, check GSM at fabric inward, because fabric arriving 5 GSM heavier than ordered inflates consumption on every single piece while the costing sheet still shows the ordered weight. None of these needs software, only the decision that fabric gets counted the way cash gets counted.