wall with no exposed pillars
Architectural term for a wall where the structural pillars are completely hidden behind the wall surface, as opposed to 真壁 (しんかべ) where pillars are visible. Used in traditional Japanese building descriptions.
See also: 真壁
この和室は大壁で、柱が見えません。
This Japanese-style room has walls with no exposed pillars.
大
Please explain the difference between a wall with hidden pillars and one with exposed pillars.
Compound of 大 (おお, 'large' or 'great') and 壁 (かべ, 'wall'). The exact historical derivation is uncertain; the term is used in traditional Japanese architecture to describe a wall that fully conceals structural pillars.