How the numbers are worked out
Width: art (including its frame) usually looks balanced at about two-thirds to three-quarters of the furniture width. Many sellers like larger art in their listing photos, so treat the top of the range as a good default for a first photo.
Height: hang the bottom of the frame about 6–10 in (15–25 cm) above the furniture. Without furniture, a common gallery guideline puts the centre of the art about 57–60 in (145–152 cm) from the floor.
Sets: leave 2–3 in (5–8 cm) between panels and treat the whole group as one piece.
Want to see it before you print it? Browse WallMock's reviewed rooms and preview your own art in them.