Nobody weighs bulk hair at install. That is exactly why weight tolerance is the quietest margin leak in the trade: a small shortfall on every pack becomes a full installation's worth of material across a season, and it never appears in a complaint because the client never sees a scale either.
1. Build a Baseline, Not a Complaint
Weigh ten unopened packs from a shipment on a kitchen scale, with packaging removed. Record the mean and the spread. You are not looking for perfection; you are looking for consistency and for a number you can hold a supplier to at reorder.
2. Separate Net From Gross
- Weigh the empty packaging from one pack so your net figure is honest.
- Note whether the pack includes a band, card or moisture sachet.
- Weigh freshly received stock before storage, not after a humid month.
3. Turn the Number Into a Clause
Once you have a baseline, ask the supplier to confirm net weight per pack and the accepted tolerance in writing. A supplier who states a tolerance is a supplier who controls their packing line. One who cannot is telling you something useful too.
The Weigh-In Reference Suite
Bulk formats for establishing a net-weight baseline across suppliers and lots.
