First of all, take a look at the wall you’re going to fill to decide what size art you should pick. There are many ways to determine this and you’ll see different ideas throughout this
A good rule of thumb is to choose wall art that takes up the width of the wall, minus 6-12 inches on each side, so it looks like it’s centered, like the image above. For example, you have a 36 inch wall. Leave about 6 inches on each side of the piece of art, which means you should choose something around 24 inches wide.
What if you are hanging wall art over a sofa, bed or table? Choose a piece of art (or a series) that is the same length as the furniture piece or smaller. Avoid wall decor that is wider than the furniture piece; it looks totally weird.
What if you have a gigantic wall? Large canvas wall art can be very expensive or hard to get into your apartment. Instead, choose smaller pieces that can be laid like a collage or gallery wall like the contemporary living room above.
Next, decide how high to hang your wall art. Wall art height is the concept that goes wrong the most. The general rule of thumb is to hang wall art at your sight line, so you don’t have to look up too high or too low at it. That means the center of your wall art area is about 60 inches from the ground.
What if you’re hanging living room wall art over furniture like a sofa or sofa table? Hang the artwork so the bottom edge is 6-8 inches from where the table or sofa back ends.
Once you have an idea of a general spot, frame out the area with painter’s tape to visualize the spot. Stand back a few feet and see if you like where it sits on the wall. Get artsy with this; maybe you want to hang your wall art slightly off center because there’s a plant in the corner or a chair that will block some of it. Create a vignette, or setting, like the image above, where the art is part of the grouping and slightly off center.