When Size Matters: Choosing the Right Postcard Dimensions for Your Goal
Postcard size is one of those decisions that looks simple until it isn’t. On the surface, it feels like a design choice. In practice, size affects almost everything that follows: postage, printing efficiency, mail handling, layout flexibility, and even how confidently your message is received. It’s also one of the easiest places for costs to creep up quietly if decisions are made out of order. If you’re planning a postcard mailing, this is the context that helps size become a strategic choice rather than a guess. The Postcard Sizes Seen Most Often (and Why) While postcards can technically be produced in many dimensions, a relatively small group of sizes shows up again and again. That’s not an accident. These formats tend to work well with presses, mail systems, and real-world messaging needs. The Classic 4 x 6 Postcard It remains popular because it’s familiar, efficient, and easy to produce. It works best when the message is short and direct...