How is spiral coiling made in basketry?

In basketry, spiral coiling is a construction technique characterized by a foundation element—known as a standard—that is wound in a continuous spiral around itself. The structure is secured stitch by stitch and coil by coil using a binding thread.1

The specific method of assembly depends on the nature of the standard used:2

• Solid standard: When the standard consists of a single whole stem, the thread binds the two coils together by squeezing them against each other, which creates a diagonal or twilled effect.2
• Double or triple standard: When multiple standards are used, the thread is passed through each stitch to catch one of the standards from the preceding coil.2

This technique is a widespread form of coiled construction found across various regions, including northern Eurasia, northwest North America, the southern Pacific, and parts of Africa.2