How to size posters for the wall
Match the artwork to the wall, not the other way round
A common rule: the artwork (or grouping) should span 60–75% of the width of the furniture or wall section it sits over. Anything under 50% looks like a postage stamp; anything above 90% looks crowded. Hang so the centre of the artwork sits at about 57–60″ from the floor — gallery standard for the average viewer's eye height.
Aspect ratio decides what fits
Vertical walls and narrow spaces want portrait orientations; horizontal walls (above sofas, headboards) want landscape. The aspect ratio of common print sizes (4:5, 3:4, 2:3, 16:9) determines whether your existing frame or wall section will hold the print without awkward cropping. See aspect ratios for the full reference.
Frame and matting changes the displayed size
A 16 × 20″ print in a frame with a 2″ mat shows about 24 × 28″ on the wall. Always size to the framed-and-matted dimension, not the bare print.
Common mistakes
- Hanging artwork too high. The 57–60″ centre rule beats most untrained instincts.
- Picking by print size instead of finished framed dimension.
- Mixing too many aspect ratios in a gallery wall — the eye reads it as clutter.