ニット生地と製品のコスト構造：見積もりの読み方

Few things frustrate apparel buyers more than quotes that cannot be compared. Three suppliers quote the same T-shirt, and the prices range from €4.20 to €6.80. The instinct is to treat the cheapest as the best deal. Usually, that instinct is wrong — the quotes describe different products.

Understanding how knit products are costed lets you compare accurately, negotiate intelligently, and spot where quality has been quietly compromised. This guide breaks down the cost stack for knit fabrics and garments.

The Cost Stack: What You Are Actually Buying

A knit garment’s price is built from several layers:

Two quotes that look different on price are almost always different somewhere in this stack.

Cost Driver 1: Yarn and Fiber

Fiber is where quotes most often diverge. Consider what changes the yarn cost:

A cheap quote often signals a cheaper yarn: lower-grade fiber, more polyester in the blend, or a lighter fabric masquerading as the specified weight.

Cost Driver 2: Fabric Weight (GSM)

Fabric weight is a direct cost multiplier because it determines how much yarn goes into every square meter. Moving from 160 gsm to 200 gsm jersey increases yarn consumption by roughly 25% for the same fabric area. Across a large order, that is a significant sum.

This is why GSM must be specified with a tolerance. A supplier delivering 175 gsm against a 200 gsm specification is not cheating on the price — they are quietly reducing the material. Confirm GSM with test reports, not by trusting the label.

Cost Driver 3: Dyeing and Finishing

Dyeing is resource-intensive, and color choice affects cost:

Cost Driver 4: Structure and Construction

For garments, construction complexity is a major labor driver:

Cost Driver 5: Order Quantity

Unit cost falls as quantity rises, because fixed costs — setup, sampling, machine changeover, dye baths — are spread over more units. This is why low MOQ carries a premium of roughly 15–40% over full-volume production. The premium is not the factory being greedy; it reflects genuine setup inefficiency.

Cost Driver 6: Certifications and Compliance

Certified materials and tested products cost more, because certification adds real work: chain-of-custody documentation, accredited lab testing, and audited processes. If a quote for a “GOTS organic” tee is close to the conventional cotton price, ask for the certificate — something does not add up.

Why Two Quotes Are Not Comparable

Before comparing prices, normalize the specification. Check that both quotes assume the same:

A quote that omits some of these is not cheaper — it is less complete. Ask every supplier to quote against the same written specification.

Reading a Quote Like a Buyer

Negotiating Without Compromising Quality

Conclusion

Costing is not a mystery — it is a stack of understandable drivers, and price differences almost always reflect differences within that stack. The professional approach is to quote against an identical written specification, insist on a cost breakdown, verify GSM and certifications with real reports, and model landed cost before deciding. Compare like with like, and the “cheap” quote usually stops looking cheap.

Key Takeaways for Buyers

Work with HONGTEX

HONGTEX is a vertically integrated knit textile manufacturer based in China, offering in-house knitting, dyeing, cutting, and finishing under one roof. From fabric development and sampling to bulk production and third-party quality inspection, we support brands, retailers, and trading companies across every step of the product journey. Contact our team today to discuss your project and receive a tailored quotation within 24 hours.