what is tatami
Tatami & Goza Mats. Tatami are a traditional Japanese floor mats. They are made by covering rice straw with a woven sea rush. Tatami are made in individual mats of uniform size and shape, bordered by brocade or plain cloth. The size of a room in Japan is typically measured by the number of tatami mats. Standard dimensions of full mats are fixed at 90 cm by 180 cm (1.62mÂ²).