Multi-Panel

Multi-Panel & Triptych Canvas Prints: How to Split an Image

Running one image across three or more canvases looks generous and modern, provided the split is right. Here is how to set the gap, the cut lines and the edge extension so the picture aligns across the spaces between panels.

A multi-panel canvas print divides a single photo across several separately stretched frames, hung with a small gap between them. What makes it work is the play between a continuous subject and the visible spaces: your eye completes the image across the gaps. Two things have to be right when you split. One is the gap, the wall spacing between panels. The other is the edge extension for each individual frame.

Diptych, triptych, multi-panel: the difference

The terms simply describe how many pieces the image is divided into:

  • Diptych: two panels, often equal width. Calm and symmetrical.
  • Triptych: three panels, the classic and most popular layout. Works as equal widths, or with a wider centre panel.
  • Multi-panel: four, five or more pieces, including staggered or grid arrangements. The most dynamic look, though it demands the calmest subject.

In every case it stays one image. You don't design the pieces separately; they're cut from the same photo, including the material that disappears behind the gaps.

The gap: why image content has to disappear behind the spaces

If the finished canvases hang with, say, a 3 cm gap on the wall, real subject is missing in that space. Cut the photo into equal pieces and the image lines end up offset across the gap. A horizon, for instance, no longer meets at the same height on either side.

So when you split, exactly the width of the gap gets removed from the subject, instead of just placing the panels next to each other. That keeps the horizon, building edges and diagonals lined up across the spaces. A wall gap of 2 to 4 cm per space is typical.

Where can the split line fall, and where not?

The gaps are visible cuts through the picture. Plan them deliberately:

  • Avoid faces and eyes on a split line. A face divided by a gap almost always looks jarring.
  • Use calm zones for the cuts: sky, water, out-of-focus background or even-toned areas.
  • Mind the dominant lines. A horizon or strong diagonal running cleanly across all panels reinforces the multi-panel effect.
  • Centre subject for three panels: ideally the main subject sits in the middle panel, with the side panels showing context.

Every panel needs its own edge extension

Here's the mistake I see most often: the image is split correctly, but people forget that each panel is a self-contained stretcher frame. Every piece needs extra material all around to wrap the frame depth and be stapled on the back, exactly like a single canvas print.

On the outer edges of the overall image the usual rules apply: image wrap, mirror or colour fill. On the inner edges, the ones facing the gap, you also need wrap material. A mirror is usually the safest choice there, because it cuts off no subject content. Which method fits when is covered in Canvas Wrap vs. Gallery Wrap.

Common layouts

FormatSplitEffect
Diptych2× equal widthCalm and symmetrical; good for portrait pairs and before/after
Equal triptych3× equal widthThe classic for panoramas and landscapes
Centre-weighted triptychnarrow · wide · narrowDraws the eye to the main subject in the middle
Four-panel4× equal widthWide panoramas, very large walls
Grid (e.g. 2×2)Grid arrangementModern and graphic; needs an even, calm subject

Step by step with Canvas Print Hero

The multi-panel mode handles the split including gap and edge extension automatically:

  1. Load the image and choose multi-panel / triptych mode.
  2. Set the number of panels and the split (equal widths or centre-weighted).
  3. Enter the gap (wall spacing). The subject is trimmed to match so the lines align.
  4. Set the frame depth and wrap method. The edge extension is calculated per panel.
  5. Enable fold and cut markers and export all panels in one go as print-ready TIFF, JPEG or PDF files.

The live preview and wall mockup show immediately how the finished multi-panel piece looks on the wall, gaps included.

Split triptychs & multi-panels without the math

Canvas Print Hero divides your photo so the lines still meet, accounts for the gap and edge extension on every panel, and exports all pieces print-ready. It's free to try, with the full feature set and only a watermark on export.

Download free

Frequently asked questions

How many megapixels do I need for a large multi-panel print?

Because a multi-panel print ends up very wide overall, having enough resolution matters. How many pixels you need for a given total width is covered in Resolution & DPI for canvas prints.

Do all panels have to be the same size?

No. A centre-weighted layout (narrow · wide · narrow) is a popular triptych variant. Canvas Print Hero supports both equal and unequal splits.

Do I need Photoshop for this?

No. Canvas Print Hero splits the image on its own, without Photoshop or plugins, for macOS, Windows and Linux.