Before framing an artwork it is wise to consider the overall size of the finished product once framed. If you have the financial clout of a National Art Gallery and their abundant wall space framing a stamp in a ten-foot-wide mount probably is an option, but as most people live in boxes and place a lower priority on spending their hard-earned money on their wall decor, it is an important consideration. That’s where convention rules. It states that for an average-sized artwork around 50 mm of mount card is adequate. Art does need surrounding white wall space to be appreciated, so where a picture will hang should be considered. Always measure the space on the wall where you are going to hang a picture before going to a picture framers.
Many of the greatest artists gave their patrons suggestions about the type of frame they thought would best compliment their masterpieces.