Semnan rugs, finely and densely hand woven Persians, are distinguished by large geometric shapes that run in linear patterns down the center of the rug. Semnan is located on a large plain along the southern edge of the Alborz Mountains between Tehran and Mashad. Known for its superbly crafted area rugs, Semnan is also a thriving marketplace for local grains, cotton, and tobacco. Although Semnan can now boast over 50,000 inhabitants, production of area rugs is rather limited, creating a very high demand, particularly among collectors. All of the Semnan area rugs are very finely and densely woven with thick wool strands by extremely skilled artisans using the Persian asymmetrical knot. The distinguishing characteristics of Semnan area rugs are large geometric shapes that run in a linear pattern down the center of the rug. It is also common to see small and finely articulated designs, often in endless repeats on Semnan area rugs. [ref. Rachel Neil]
Placing the correct size rug in your space is as important as choosing the right color or pattern. A rug that it is too small will shift the balance of the room unfavorably. A rug that is too big, especially in open floor plans, may put the area designations off. There are a few rules of thumb, but a picture says it better. Use these handy guides by Interior Designer Lisa Ferguson to make the best choice.