Therefore, the former usually indicates the sawn timber with the size of 3 shaku times 6 shaku (90.9 centimeters times 181.8 centimeters), while the latter indicates the sawn timber of 4 shaku times 8 shaku (121.2 centimeters times 242.4 centimeters).
前者は3尺×6尺（90.9cm×181.8cm）、後者は4尺×8尺（121.2cm×242.4cm）の大きさの板材を指すことが多い。