During the Second World War, when carpet weaving in Shirvan and other parts of Caucasia came to a standstill, the Ardabil weavers thought to seize the opportunity and take advantage of the situation. They decided to change and modify their designs to increase their sales.
The runners and the carpets woven in Ardabil are definitely under the influence of Caucasian and Tabriz designs. Recently they have copied the "Harati" design and produced them in various dimensions
They count from 100.000 to 300.000 knots in every square metre. They also use silk fibres to weave fine carpets. The prevalent colours of the Ardabil rugs are turquoise blue, off white, blue, beige and sometimes green.