Japanese wall

A Japanese wall is composed of a mixture of sand, clay, diatomaceous earth and straw, and is a traditional element in the construction of Japanese teahouses, castles and temples.{{Cite web |title=左官（日本壁） 文化遺産オンライン |url=https://bunka.nii.ac.jp/heritages/detail/161871 |access-date=2023-09-12 |website=bunka.nii.ac.jp |language=ja}}{{Cite web |last=デジタル大辞泉 |title=日本壁(ニホンカベ)とは？ 意味や使い方 |url=https://kotobank.jp/word/%E6%97%A5%E6%9C%AC%E5%A3%81-2434197 |access-date=2023-09-12 |website=コトバンク |language=ja}} Today, teahouses continue to use this product for Zen purposes.

Traditional methods for building and decorating Japanese walls were included in the Japanese government's 1975 update to the Law for the Protection of Cultural Properties (1950).