How to Cut Photos into Custom Grid Sizes

Beyond Standard Grid Sizes

Most image splitting tools offer preset grid sizes — 2x2, 3x3, 4x4. But many projects require non-standard configurations. A 3x5 grid for a vertical banner display. A 7x1 strip for a week-at-a-glance calendar. A 2x3 grid for a specific printing layout. Custom grid sizing gives you the exact tile dimensions your project needs.

How Custom Grid Splitting Works

Custom grid splitting divides your image into a specified number of rows and columns. The image width is divided equally by the column count, and the height by the row count. Each resulting tile has identical dimensions.

The math is straightforward: a 4000 x 3000 pixel image split into 4 columns and 3 rows produces 12 tiles, each 1000 x 1000 pixels. A 5000 x 2000 pixel image split into 5 columns and 2 rows produces 10 tiles, each 1000 x 1000 pixels.

Using the Custom Grid Tool

Open the Custom Grid Maker and upload your photo. Enter your desired number of columns and rows. The tool instantly shows a preview with grid lines overlaid on your image, plus the calculated tile dimensions.

Adjust the grid parameters until the preview shows cuts that work for your content. Once satisfied, download all tiles as a numbered ZIP file.

Custom Grid Applications

Panoramic Strips

Split a wide panoramic image into a single row of tiles (Nx1 grid). This creates a horizontal strip that works as a scrolling web banner, a multi-panel social media post, or a physical display. The Panorama Splitter is optimized specifically for this use case.

Vertical Banners

Split a tall image into a single column of tiles (1xN grid). Useful for long infographics, vertical banners, and step-by-step visual sequences that read from top to bottom.

Non-Square Instagram Grids

While Instagram displays in 3 columns, you are not limited to 3x3. A 3x4 grid (12 posts) or 3x5 grid (15 posts) creates a taller visual on your profile. Split your design into 3 columns and as many rows as you need using the Custom Grid Maker.

Print Layouts

Printers have specific paper sizes. Calculate the grid dimensions that divide your image into sections matching your paper size, accounting for margin and bleed. Common configurations:

Photo Mosaics

High-count grids (8x8, 10x10, or higher) create mosaic effects where each tile shows a small detail of the larger image. These work for artistic displays, Instagram Stories sequences, and interactive web galleries where viewers click tiles to zoom into sections.

Getting Clean Cuts

Custom grids sometimes place cuts through important image elements. Strategies to avoid this:

• Adjust the grid count: Changing from 4x4 to 5x4 shifts all cut lines. Small changes can move cuts away from critical content.
• Reposition the image: Crop or pad the image before splitting to shift content relative to the grid lines.
• Choose images with distributed content: Photos with repetitive patterns, textures, or evenly distributed subjects handle grid cuts better than photos with a single focal point.

Tile Numbering and Order

The Custom Grid Maker numbers tiles sequentially from top-left to bottom-right, reading left to right across each row. This standard numbering works for most reassembly scenarios:

• Printing: Assemble tiles in number order, left to right, top to bottom
• Instagram: Post in reverse order (highest number first) for correct grid display
• Web development: Map tile numbers to CSS grid positions directly

Cut your photos into any custom grid size — open the Custom Grid Maker and set your exact rows and columns.