A tricky part about designing a trifold brochure is correctly sizing the six panels (three on the outside of the trifold, and three on the inside). The panels cannot be the same width if they are to nest inside each other properly and fold evenly. Correct panel sizing is even more important if the fold line is designed to follow along the edge of a graphic element (e.g., a photo or block of color).
Normally, the end panel that folds in would be 1/32-inch to 1/8-inch narrower than the other two panels. See specific dimensions in our illustration below.
As a handy and convenient tool for your next trifold design project, we have set up a correctly sized trifold and a 4-panel barrel fold template that you can download. The template is available in both InDesign format and PDF format.
Please click on the appropriate link to download the file. If you have any questions, do not hesitate to email or call us (802-254-3550).