Weft (also called woof or fill) refers to the horizontal threads in woven fabric - the threads passed through the vertical warp threads to create the weave.
In Weaving
The weft thread:
- Is carried by a shuttle or other mechanism
- Passes over and under warp threads
- Creates the fabric structure through interlacing
- Runs selvage to selvage (edge to edge)
In Towels
Weft threads work with warp threads to create the ground cloth (base fabric). The specific pattern of interlacing determines the weave structure.
Other Names
- Woof: Traditional term
- Fill: American textile industry term
- Picks: Individual weft threads
Weft vs Warp
| Weft | Warp |
|---|---|
| Horizontal | Vertical |
| Inserted through | Under tension |
| Runs widthwise | Runs lengthwise |
| Can be softer | Must be stronger |