Difference between tatami mat counters 帖 and 畳


What is the difference between tatami mat counters 帖 and 畳 (both pronounced
じょう)?




畳 is used only for tatami and is included in the Joyo list. 帖 can be used for
folding screens, stage curtains,
[shields](http://ja.wikipedia.org/wiki/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Ashigaru_using_shields_%28tate%29.jpg),
batches of nori seaweed, batches of Washi (traditional paper), or traditional
books as well as tatami, and is not included in the Joyo list.

帖 is often used as the counter for tatami mats when describing room size on a
floor plan.

[![enter image description
here](https://i.stack.imgur.com/Nlzki.png)](https://i.stack.imgur.com/Nlzki.png)




畳 is used only for tatami and is included in the Joyo list. 帖 can be used for
folding screens, stage curtains,
[shields](http://ja.wikipedia.org/wiki/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Ashigaru_using_shields_%28tate%29.jpg),
batches of nori seaweed, batches of Washi (traditional paper), or traditional
books as well as tatami, and is not included in the Joyo list.

帖 is often used as the counter for tatami mats when describing room size on a
floor plan.

[![enter image description
here](https://i.stack.imgur.com/Nlzki.png)](https://i.stack.imgur.com/Nlzki.png)

