Thread running from the top to bottom of a rug is called what?

The term that describes the threads running from the top to the bottom of a rug is "warp threads." In weaving, warp threads are the ones that are set up on the loom and run vertically, providing the foundation for the rug's structure. They are interlaced with weft threads, which run horizontally and are woven through the warp to create the fabric. Understanding the distinction between warp and weft is crucial in processes like rug making, as it defines the orientation and overall strength of the textile. Therefore, recognizing warp threads is essential for anyone involved in the weaving or auction of rugs.