Gauge & Weight Tolerance: Why Bulk Hair Orders Vary By 5–10 Grams
If you’ve ever weighed a shipment bundle by bundle, you know the pattern: 98 grams, 103 grams, 100 grams, then one at 106. A 5–10 gram swing in bulk hair orders is common, but not every swing is acceptable. Here’s what causes it and how to protect yourself without raising cost.
Gauge is not the same as grams
Gauge isn’t an official factory spec; it’s warehouse talk for how thick a bundle looks. Two bundles can weigh the same and look different because texture and length change their shape. Straight hair lies flat, curly expands, and a 28-inch bundle spreads 100 grams over more inches than a 14-inch. When comparing bulk hair for braiding, ask for the finished look and written net weight.
Why bulk hair orders move on the scale
Moisture is the biggest honest reason. Human hair absorbs and releases water from air, so a bundle weighed in a damp workshop can lose a few grams, while the same hair gains in a humid US warehouse. Bands, tags, paper wraps, combed-out strands, and scale rounding can add another gram or two. With weft hair, thread and folding also count; with loose bulk, the PO must say whether bands and tags are included.
5 grams is normal; 10 grams needs rules
On 100 grams, 5 grams is 5%; 10 grams is 10%. The first is routine; the second needs an agreed tolerance.
- ±5 grams per bundle is normal.
- ±10 grams only if written beforehand.
- Shipment average should stay near ±1–2%.
Random highs and lows cancel across 50 or 100 bundles. Every bundle reading 92 grams is short weight, not tolerance. A 3-gram difference may not affect a braid install, but it can ruin a clip-in set, so review our weight per piece standards before ordering.
What tighter tolerance actually costs
Exactly 100.0 grams means weighing, adding strands, removing strands, and reweighing until the hair stabilizes. A ±2-gram range adds QC, sorting, 2–5 production days, and often a few percentage points to price. A cheap “100-gram” bundle may really run 90–95 grams, so compare cost per gram. That’s why you should verify raw hair suppliers before a large deposit.
Put this on the PO: target net weight, individual range, shipment average, included materials, inspection place, and claim window. A simple spec: 100 grams net hair per bundle, 95–105 grams each, 99–101 gram average, tags and bands excluded.
Weighing the shipment the right way
Use a calibrated scale reading to 0.1 gram. Let the hair acclimate for a day after extreme humidity, then weigh without plastic, keeping bands only if the spec includes them. Don’t wash or oil first. Spot-check 20 percent on repeat orders; weigh all pieces for first or large orders. Send lot numbers, photos, or video quickly—claims after installation are hard to resolve.
Quick questions from buyers
Is a 5–10 gram difference automatically a defect?
No. A few 95- or 105-gram bundles on a 100-gram target aren’t usually defects. It matters when pieces fall outside the written range, the average is low, or an entire lot runs light.
Can every bundle be exactly 100 grams?
Not practically. Hair reacts to humidity, and hand-weighing has limits. Tighter ranges add labor, lead time, and cost; protect the order average instead.
Should I weigh bundles or the whole box?
Both. Individual weights show pieces outside tolerance; the average shows systematic short weight. Exclude the box and outer packing.
Confirm weight, tolerance, and average with length, texture, MOQ, and lead time. Check our FAQ for basics, or send your specs and we’ll suggest a realistic range. Settle grams now, not after delivery.
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