The Finnish Rya is made of knotted wool(with about a 1 – 1.5 inch pile), tied to a handwoven fabric backing. The special rya backing is woven using linen warp and wool weft. The backing is woven with spacing to allow the rya knots to be tied or sewn in.
A Rya rug can be woven and knotted directly on a loom, or the backing can be woven separately on the loom and rya knots can be hand stitched afterwards onto the backing.Here is a weaving draft and instructions for how to weave the backing fabric.
A project to weave a rya tapestry using hemp yarns.
About Finnish Textiles: poppana, rya rugs
A brief history of rya rugs in Finland and Sweden