Terry Weaving
Pile ratio is the towel. It sets absorbency, hand and roughly three quarters of the yarn cost, all from one let-off setting.
— g/m²
Loom-state weight of all three yarn streams
—% pile warp —% ground warp
Loom-state weight. Terry gains weight per square metre in finishing as the cloth shrinks in both directions — apply your own finishing allowance before quoting a finished towel.
Terry Towel Pile-to-Ground Ratio & GSM Calculator — free, with the formula and a worked example, at Textile School.