5x7 on 8x10
For this size, choose an 8x10 product. Image size is 5x7.
for 8x10 or 11x14
This size is suitable for 8x10 or 11x14 prints. This will fill the product size more, with a slight empty area surrounding the print in order to show the rough border.
8x10 on 11x14
For this size, choose an 11x14 product. Image size is 8x10
11x14 on 16x20
For this size, choose a 16x20 product. Image size is just under 11x13.75 inches