bastard ashlar

uncountable

Stones for ashlar work, roughly squared at the quarry.

Japanese Meaning

アシュラール工芸用の石材で、採石場で大まかに角を取られた石

The mason inspected the bastard ashlar before deciding which blocks to use for the foundation.

石工は基礎に使う石を選ぶ前に、粗く方形に整えられた切石を点検した。

Sense（1）

Stones for ashlar work, roughly squared at the quarry.