With 5 photos in 3 columns, the two in the last row come out bigger; how do I make all cells equal?
That is deliberate: the tool stretches an incomplete last row across the full width. Untick “Stretch an incomplete last row to the full width” and every cell goes back to the same size, with the missing sixth spot left empty in the background color. Or choose a count that divides evenly, such as 6 photos in 3 columns.
What actually happened
When you add 5 photos to the Image collage maker maker it suggests 3 columns on its own, which gives two rows: three photos on top and only two below. The option that is on by default shares the whole width between those last two photos so no gap is left, which makes each of them much wider than the photos above. The height does not change, because every row in the grid has the same height, so the cell turns from a square into a wide rectangle.
5 photos, 3 columns, a 1200 px width, a 10 px gap, 0 margin and a 1:1 cell shape.
The top row cells are about 394 × 394, and each of the two last-row cells is 595 × 394. The output is 1200 × 798 either way.
There is a side effect people often miss: a wide cell crops more of the photo. A 1000 × 1000 square photo in a 595 × 394 cell keeps a band about 662 px tall and loses roughly 169 px at the top and the same at the bottom. That is why you may find the top of a bottle or the base of a lamp cut off in the last row only.
Three fixes; pick the one that suits the design
- Untick “Stretch an incomplete last row to the full width”. All five cells become the same size, the sixth spot at the right end of the last row stays empty in the background color, and a note tells you how many cells are empty.
- Add a sixth photo, such as the packaging or your store card, so the 3 × 2 grid is complete with no stretching and no gap.
- Change “Columns” to 5 to put all the photos in one row. At a 1200 width with a 10 gap each cell is 232 × 232 and the output is 1200 × 232, a wide strip that suits a banner better than a post.
When stretching is actually useful
Stretching is not a bug, and it suits some cases. If the last two photos are landscape shots to begin with, say the product on a table, the wide cells fit them and crop less. If you want the last two images to stand out as a finale, such as the offer and the gift wrapping, the bigger size draws the eye there. In a grid of similar products that customers compare, though, equal cells are fairer and clearer.
Small details worth knowing
- The empty cell always sits at the end of the last row, because the tool fills from left to right. Use the move buttons if you want a particular photo in a particular place.
- With a transparent background in PNG or WebP, the empty cell stays transparent, which can look odd on the platform's background.
- Once you change the column count yourself, the tool keeps your choice and stops suggesting columns when you add photos.
Common questions
Can I center the two photos in the last row?
No, centering is not supported. The two choices are stretching to fill the width, or same-size cells starting from the left.
Does this option apply to the featured layout?
No, it only appears for the grid, because the “One large + small” layout never has an incomplete last row.
Why is one cell a pixel wider?
The tool gives leftover pixels to the first columns so the total width is exactly what you entered, so cells can differ by a single pixel.