Inner frame size:

A4 [29.7 * 21cm] horizontal and vertical Universal

A3 [29.7 * 42cm] horizontal and vertical Universal

4 Open [38 * 53cm] horizontal and vertical Universal

8 Open [26.6 * 38cm] horizontal and vertical Universal

12-inch [30.5 * cm] horizontal and vertical Universal

14-inch [28 * cm] horizontal and vertical Universal

16-inch [30.5 * cm] horizontal and vertical Universal

18-inch [35.5 * cm] horizontal and vertical Universal

20-inch [40.6 * cm] horizontal and vertical Universal

24-inch [50.8 * cm] horizontal and vertical Universal

30-inch [50.2 * cm] horizontal and vertical Universal

Frame size:

Regular