Oriental rugs by nature are patterned rugs with one or more of
the following elements:
Border - A series of bands running around the perimeter
of rug with repeated motifs.
Ground or Field - An expanse of rug within the Border.
Medallion - A large central design that is different from
the field of the carpet, or, a smaller design that is repeated
evenly throughout the field.
Corners - A design in the four corners of the field that
resembles portions of the Medallion.
All Over - A curvilinear design that covers the field.
Repeated Pattern - A number of motifs with in the Border,
repeated, covering the field.
Asymmetrical or Directional - A clear top and bottom to
the design, often pointed or arched at the top, often used in
prayer.
Symmetrical - An All Over design, with or without a Medallion,
that is the same from either end or edge.
Open Field - A large area of color within the Border,
often with central Medallion.
Designs usually fall into two categories, geometric or angular
designs that use more straight lines and angles to form the pattern
(i.e. "rural rugs" like Kazak and Heriz) and the intricate
patterns that are curvilinear with floral motifs and interwoven
branches (i.e. "city rugs" like Kashan and Tabriz).