This document provides size guidelines for multi-image posts that can be published on Facebook pages. It shows example layouts for posts with 2, 3, or 4 images. For a 2 image post, the recommended sizes are 400x200px and 400x200px. A 3 image post layout includes images sized at 200x400px, 200x200px, and 200x200px. A 4 image post allows for images sized at 400x275px, 125x125px, and three at 125x125px with the last being 275x400px.

1. How Multi-Image Posts Publish on
Facebook Pages – Size Guide
iOL Digital Marketing Services - Mumbai
April 15, 2014

2. Multi Image Post with Two Images
400 px X 200 px
400 px X 200 px
200 px X 400 px 200 px X 400 px

3. Multi Image Post with Three Images
200 px X 400 px
200 x 200 px
200 x 200 px

4. Multi Image Post with Four Images
400 px X 275 px
125 x 125
px
125 x 125
px
125 x 125
px
275 px X 400 px
125 x 125
px
125 x 125
px
125 x 125
px