Square: (HxW)
Flushmount
8x8, 10x10, 12x12, 14x14, 15x15
Photobook
12x12, 14x14, 15x15
Landscape: (HxW)
Flushmount
8x10, 8x12, 10x12, 10x13, 11x14, 12x15, 12x16, 12x18
Photobook
8x12, 10x14, 12x15, 12x16, 12x18
Portrait: (HxW)
Flushmount
10x8, 12x8, 12x9, 12x10, 14x11, 16x12.
Photobook
15x12, 16x12, 18x12