This is my template for making great card cover previews. I hope this helps people out. I’m a big fan of Trello. If you’re reading this Fog Creek, thanks guys.
Best,
Justin
Trello Card Cover Preview Template for Photoshop
TrelloCardCoverTemplate-PSD.zip
Features
- Safe zones to predict auto-cropping by Trello
- Wide-screen format (2.4:1)
- Sharp & opaque guiding lines
- Solid colors are transparent to let you see the subject
- Layers clearly labeled and organized; toggle viability of guides with ease
- Created in Photoshop CS5
Workflow Tips
- Center subject beneath the guiding layers
- Keep all critical subject matter (such as text) in the “Safe Zone”
- Anything outside the safe zone will be cropped by overcrowded Trello boards (list width shrinks dynamically)
Example

Example of Trello Card Cover Template on different Trello list widths that occur due to overcrowding
Download
TrelloCardCoverTemplate-PSD.zip