Carpet method of installation. Carpet tiles are also available, typically square. These are usually only used in commercial settings and are affixed using a special pressure-sensitive glue, which holds them into place while allowing easy removal (in an office environment, for example) or to allow rearrangement in order to spread wear. "Carpet binding" is a term used for any material being applied to the edge of a carpet to make a rug. Carpet binding is usually cotton or nylon, but also comes in many other materials such as leather. Non-synthetic binding is frequently used with bamboo, grass and wool rugs, but
Persian carpet filled by identical, star shaped ornaments made up by centrally overlapping x- and cross-shaped patterns. The design of the carpet already shows the basic arrangement of what was to become the standard oriental carpet design: A field with repeating patterns, framed by a main border in elaborate design, and several secondary borders. The discoverer of the Pazyryk carpet, Sergei Rudenko, assumed it to be a product of the contemporary Achaemenids. Whether it was produced in the region where it was found, or is a product of Achaemenid manufacture, remains subject to debate. Its fine weaving and elaborate pictorial design hint