In Shoin-zukuri style, tokobashira is basically kakubashira (a corner post or pillar that is square or rectangular), but at a private residence, for example, because of the influence of Sukiya-zukuri style, an uncommon precious wood, such as a log with knots, is often used.
書院造では角柱が基本であるが、私邸などでは数寄屋造りの影響から、節つきの丸木等、珍しい銘木を用いることも多い。