This size is also cost-effective, as it is the largest USPS postcard size that can be mailed as a first-class postcard larger postcards are classified as letters. A 6x4 postcard provides enough space on the front for a detailed photo or piece of art, as well as enough space on the back for a personal message or handwritten letter. This size is versatile and is well-suited for business, advertising, and social postcards. You can add additional information on the back of the postcard, giving you ample space on the front for an eye-catching design. They’re a great choice for advertising events, as they are large enough to include the name, time, and location of the event. Small postcards are typically 5.5x4.25 or 4.25x5.5, and they are perfect for all kinds of notes and communication. Each size can be printed in portrait or landscape orientation. There are in fact three common postcard sizes: 5.5x4.25, 6x4, and 7x5.
In this article, we’ll explain each postcard size and provide tips for choosing the perfect postcard for your project. However, did you know that there’s not only one postcard size? There are in fact many postcard sizes, all of which are appropriate for different situations. They can serve many purposes, from marketing campaigns to personal communication and more. Postcards are useful and versatile tools. Postcard Size Guide: What You Need To Know