These pileless floorcoverings are made on looms which are similar to those used for weaving cloth.
Harness looms, dobby looms and Jacquard looms are employed, and the weaves may be anything from a simple basket weave to all manner of more complicated herring-bones, twills, etc.
Reversible rugs with a pattern are made on a two-frame Jacquard loom: Many of the interesting textures made today result from the use-of a variety of yarns rather than weaves.