Spun and dyed thread was woven into cloth on looms—complex frames that held warp threads (lengthwise) taut while weft threads (crosswise) were woven through them.
The Warp-Weighted Loom:
The traditional Celtic loom was vertical—warp threads hung from top beam, weighted at the bottom with stones or clay weights. The weaver stood before the loom, passing the weft through shed (opening between warp threads).
This loom type was simple, portable (could be disassembled and moved), and effective for producing sturdy cloth.
The Tartan Pattern:
Tartan’s checked pattern was created through careful planning:
- The warp threads were arranged in colored stripes
- The weft threads repeated the same color sequence
- Where same colors crossed, solid blocks appeared
- Where different colors crossed, mixed blocks appeared
- The result was distinctive checked pattern
Creating consistent tartan required careful counting—the stripe widths had to be exact, the color sequence had to repeat precisely, any error became visible flaw in the finished cloth.
The Weaving Labor:
Weaving was slow work—a skilled weaver might produce a yard of cloth per day, working continuously. A cloak or heavy tunic might require several days of weaving after weeks of spinning preparation.