Ukiyo-e has a standardized sizing system.
"Oban" (39x27cm) is half the size of the standard-sized paper known as "O-bosho" (54x39cm), and "Chuban" size is a fourth of the original sheet.
Here are other sizes for your reference.
*Prints may vary from the stated standard dimensions. Please contact us for precise sizes.
Format taken from O-bosho(54×39cm)
O-bosho was the most common form of paper in the late Edo period.
Oban | approx. 39×27cm | Half of O-bosh |
Chuban | approx. 27×19.5cm | Half of Oban |
Koban | approx. 19.5×13.5cm | Quarter of Oban |
Tanzaku ban | approx. 39×13.5cm | Vertical quarter of O-bosho |
Otanzaku ban | approx. 39×18cm | Vertical One-third of O-bosho |
Format taken from Kobosho (47×33cm)
Hosoban | approx. 15.5×33cm | Vertical One-third of Kobosho |
Aiban | approx. 23.5×33cm | Vertical Half of Kobosho |
Format taken from Takenaga-hosho (52×77cm)
Nagaban | approx. 52×25.6cm | One-third of Takenaga-hosho |
Hashira-e | approx. 13×77cm | Vertical quarter of Takenaga-hosho |