Sizes:

Frame Width: 5 inch (120 mm)

Internal Size: 8 x 10 inch (205 x 255 mm)

Internal Size: 20 x 24 inch (510 x 610 mm)

Internal Size: 24 x 36 inch (610 x 915 mm)

Internal Size: 30 x 40 inch (760 x 1020 mm)

Internal Size: 36 x 48 inch (915 x 1220 mm)