Garment Trim Consumption and BOM Costing: How Much Each Garment Uses

How many hang tags, care labels and poly bags go into one shirt? It sounds like common knowledge, yet few brands get the consumption figure right. Then bulk production starts, the trims turn out to be 5% short, the line stops waiting for a replenishment, and the air freight costs ten times the trims themselves. The root cause is almost always one column in the bill of materials.

This guide covers five things: the three parts of a consumption figure, how to calculate it for six common trims, three conversion errors made when turning consumption into a purchase order, how trim cost enters an FOB price, and who pays for replenishment.

1. Consumption Is Not One per Garment: Net Use, Loss and Spares

Net use is what the tech pack actually calls for: one hang tag, one neck label, one care label, one poly bag. Loss is normal scrap in production: off-register printing, a drifting cut, a crooked seam, an over-pressed fold. Spares are what the brand wants travelling with the garment: a spare button, a spare thread, a spare tag pin, a spare woven label. Add the three and you have the number that belongs on the purchase order.

2. From Consumption to Order Quantity: Three Common Conversion Errors

The first error is multiplying garments by consumption and ordering that figure, forgetting the supplier's packing unit: woven labels come by roll, thread by cone, webbing by full roll, so a calculated 1,280 labels may mean buying a 1,500-piece roll. The second is merging colours and sizes into one number, which leaves one size short by dozens. The third is counting only bulk quantity, forgetting fit samples, photo samples, third-party test samples and retained samples — usually 1%–2% of the total.

• Calculate by style × colour × size, then total up; the two ends of the size curve run short first
• Round the order up to a full roll, carton or cone, and log the surplus as usable stock for the next run
• Add a 3%–5% buffer to first orders and small trial runs, where processes are not yet stable and loss runs higher

3. How Trim Cost Enters an FOB Price

The arithmetic is simple: cost per garment = (unit price ÷ pieces per pack) × consumption. The trouble is the unit basis — tags are quoted per thousand, woven labels per thousand, poly bags per kilo or per thousand, paper bags per piece. Four bases in one cost sheet invite a decimal error. Converting everything to cost per garment before adding up is the only method that holds.

Trims usually account for 5%–15% of a garment FOB, varying widely by category: a basic T-shirt carries a tag, neck label, care label and bag and sits low; categories with gift boxes, paper bags, multilingual labels and security tags sit noticeably higher. It pays to show trim cost as its own line — the customer sees where the money goes, and there is a reference point when material or process changes.

4. Replenishment and Floor Loss: Who Pays

The usual arrangement: scrap within the agreed loss rate is inside the unit price, anything beyond it follows the cause. Process faults — off-register printing, broken warp, a drifting die cut — sit with the trim supplier; soiling, misuse and loss on the garment factory floor sit with the garment factory; design changes, late additions and size changes sit with the brand. Three sentences in the contract save a lot of argument later.

The real cost of a replenishment is not the material but the time. Hang tags usually take 3–5 days, woven labels 7–10, care labels 5–7; if the garment line is already running, waiting means a stopped line, and one day of stoppage usually costs more than the whole replenishment. So the clause needs a minimum replenishment lead time and whether an expedited route exists, not just a price.

5. A One-Page BOM Checklist

• Is consumption split by style, colour and size rather than one total
• Are spare buttons, thread, tag pins and woven labels on their own lines
• Are fit, photo, test and retained samples counted in
• Does the order unit match the supplier's packing unit (roll, cone, carton, thousand)
• Is the loss rate a written number confirmed by both brand and supplier
• Does the replenishment clause cover price, minimum lead time and expediting

6. When Consumption Must Be Recalculated

Five changes move the numbers: a different fabric weight, packaging switching from folded to hanging, a tag becoming folded, a security or QR label being added, a care label going multilingual. They rarely scale everything evenly — usually one item suddenly doubles. Brands with many SKUs and frequent repeats should review quarterly and treat consumption as live data, not a one-off spreadsheet.

Related Articles

• Trims FAQ: all articles
• Hang Tag MOQ and Cost Explained
• Managing Trim Inventory and Safety Stock
• How to Compare Trim Quotations