Not every weaving material handles a directional reversal cleanly. Rattan does mostly because of how it's processed before it ever touches a frame. Rattan canes and strips are typically soaked in water for 30 to 45 minutes before weaving to make them pliable enough to bend tightly around a frame. That softened, uniform strand is what lets a weaver flip direction sharply at each band without the cane cracking or splintering at the joint, which become the moment where a fishbone weave lives or dies.
The material itself,Rattan, is a climbing palm, not a grass like bamboo, and its stems come from a genus that's been shaping furniture craft for a very long time. Calamus, the main rattan genus, includes an estimated 400 species, most of them slender, leaf-climbing lianas native to tropical and subtropical Asia, Africa, and Australia. Researchers at the Royal Botanic Gardens, Kew have pushed that lineage further back than expected, a 2025 fossil pollen find showed rattan palms existing more than 20 million years earlier than previously documented, with New Guinea alone home to more than 60 Calamus species today. A plant family with that much genetic and geographic range produces canes with real variation in flexibility and diameter, which is exactly the raw material range a weaver needs to run a tight zigzag pattern without every strand behaving identically.
There's also a structural vocabulary behind the weave that's worth knowing if someone evaluating a piece. Rattan weaving distinguishes between the "weaver", the thinner, flexible strands doing the actual weaving and the "spoke," the stiffer strands that form the upright structure the weavers pass through. In a fishbone weave, it's the weaver strands that get flipped at each band; the spokes stay put underneath, doing the structural work invisibly.