Topic summary
Shōji
Extracted from the Wikipedia article Shoji.
Koshi (dado)
If the panel is over 60 cm high, or around a third of the height of the whole shoji, the shoji may be called a koshi-daka-shōji (腰高障子; literally, high-koshi shoji). These are somewhat archaic, as they were designed to protect against rain. Now that shoji are rarely exposed to rain (due to being behind glass), the form in common use has a much lower panel, and is called koshi-tsuki-shōji (腰付障子). Manaka koshishōji (間中腰障子) have a central koshi.