The right size of canvas art depends on the size of the room andthe furniture. Art that is too small can make the space seem incomplete or poorly styled, while oversized art can make a space appear small and crowded.
A good rule to follow is keeping the total wall space covered by canvas art at 60 - 75%.To find the amount of space available to you, measure the height and width of your wall then multiply the square footage by 0.65 to find the lower range and 0.75 to find the upper range. This can give you a good indication of the total area you can dedicate to canvas art.
However, you do not need to fill the entire space with a single canvas. You can divide the area into sections to hang a triptych or series of canvas prints. You can experiment with a mid-sized piece and 2-3 smaller pieces. Just keep in mind that the dimensions of the pieces you choose should not exceed 75% of your total wall space.
When you hang your canvas art above a bed, sofa, console table, or any other large piece of furniture, the canvas should be no more than ¾ as wide as the furniture. For example, if your sofa is 6 ft. long, your canvas print should be no longer than 4.5 ft.