Spacing, sizes and layouts that work — plus a shortcut to try it on a wall before you buy.
A gallery wall is the quickest way to make a room feel personal. The difference between “curated” and “cluttered” almost always comes down to three things: one anchor piece, consistent spacing and a single frame finish.
Choose one piece that is larger or stronger than the rest — usually an 18 × 24 inch frame — and build around it. Everything else can be A4 or A3+. If you only remember one rule, remember this one.
Leave 2 to 3 inches (5–8 cm) between frames, and keep that gap identical everywhere. Even spacing is what makes different sizes read as one composition.
Above a sofa or a bed, the full group should be about two-thirds of the furniture’s width. For a typical 84-inch (213 cm) sofa, that means a group around 55–60 inches wide — for example three A3+ frames in a row with 3-inch gaps, or a salon mix built around one 18 × 24.
Mixed artwork looks intentional when the frames match. Thin black frames are the safest choice: they sharpen colour, suit every wall and let the art do the talking.