Young Dark Blonde Girl Posing In The Japanese Room With A Huge Hand-held Fan

The size of a washitsu is measured by the number of tatami mats, using the counter word jō (畳). Typical sizes are six or eight tatami mats in a private home. There are also half-sized mats, as in a 4.5 tatami room.
The furniture in a washitsu may include a low table at which a family may eat dinner or entertain guests, while sitting on zabuton or a low chair intended for use on tatami. A kotatsu, which is a particular type of low table that contains a heating element used in the wintertime, may also be provided; this is particularly important as most Japanese homes do not have central heating.