Size Matters in Direct Mail
Choosing the right postcard size is one of the most critical decisions in your marketing campaign. The size doesn't just determine how much info you can fit; it also determines your postage cost, your "stickiness" in the mailbox, and the perception of your brand.
The Standard 4" x 6" Postcard
This classic postcard dimension is cost-effective and qualifies for the "Postcard Rate" (which is cheaper than a letter). It's perfect for thank-you notes, appointment reminders, and quick announcements.
Efficiency: The 4x6 is the workhorse of the industry, offering the lowest entry point for direct mail.
The Large 6" x 9" Postcard
The 6x9 is our most popular size for general marketing. Large enough to stand out from bills and letters, it fits comfortably in mailboxes. It provides ample space for high-quality images and itemized service lists. Often used by retail stores for sales promotions, it balances cost with visibility and can include detailed product information without overwhelming the recipient.
The Jumbo 6" x 11" Postcard
If you want to absolutely dominate the mailbox, the 6x11 is your winner. This is the largest size allowed at standard letter rates. It is impossible to ignore. Real estate agents and home service providers love this size because it feels "premium" and offers a huge canvas for luxury branding. It's also ideal for showcasing multiple property listings or service packages, as the extra space allows for detailed descriptions and vibrant imagery.
Explore All Postcard Sizes
Super Cheap Cards offers a wide range of postcard sizes to suit various marketing needs. From compact 3.5x8.5 postcards to expansive 11x17 options, each size serves a specific purpose. For example, the 12x15 flat postcard provides ample space for detailed images and text, making it ideal for portfolios or large product catalogs. Smaller sizes, like 4x6, are perfect for brief messages and quick announcements.
Larger postcards like the 11x17 or 12x15 can be particularly effective for businesses looking to include more information, such as comprehensive service lists or eye-catching visuals. These sizes allow for creative layouts and are often used in direct mail campaigns targeting specific geographic areas through EDDM. The flexibility of these larger sizes also supports multiple calls to action, which can increase engagement rates.
Explore all available postcard sizes to find the perfect fit for your campaign.
Cost and Postage Considerations
The size of your postcard directly impacts both printing costs and postage rates. Smaller postcards, such as the 4x6, qualify for the postcard rate, which is more economical than letter rates. Larger postcards like the 6x11 fall under letter rates but offer greater visibility. When considering EDDM (Every Door Direct Mail), larger postcards like the 11x17 folded brochure can be beneficial as they stand out more in mailboxes.
Postage costs can vary depending on the size and weight of the postcard. For example, the 4x6 postcard typically costs around $0.40 to mail, while a larger postcard like the 6x11 might cost $0.55 per piece. Planning your budget around these costs is essential for maximizing your return on investment. It may sometimes be cost-effective to use standard mail for smaller postcards and reserve EDDM for larger campaigns targeting specific demographics or regions.
It's necessary to plan your budget by balancing size and design with the targeted reach. You can also read more on customizing your EDDM postcards for maximum impact.
Comparative Analysis Table
| Size | Postage Class | Best Use Case | Average Cost |
|---|---|---|---|
| 4" x 6" | Card Rate | Reminders, Personal Touch | $0.40 |
| 6" x 9" | Letter Rate / EDDM | Sales Promotions, General Branding | $0.50 |
| 6" x 11" | Letter Rate / EDDM | High-End Real Estate, Heavy Info | $0.55 |
| 11" x 17" | EDDM | Community Announcements, Large Events | $0.70 |
| 12" x 15" | Flat Rate | Product Catalogs, Portfolio Showcases | $0.75 |
Design Considerations per Size
When designing for a 4x6, keep it simple with large text and one offer. Moving up to a 6x11, you can afford to use multiple images and even include a sidebar with "Frequently Asked Questions" or customer testimonials.
For the 11x17 size, consider a design that splits the content into two main sections: one for a large image and the other for detailed information. This size provides ample space for creative layouts, making it suitable for storytelling or comprehensive information sharing. Consider using fonts that are large enough to be legible from a distance, especially when the postcard is intended for visual impact.
Additionally, consider the paper quality and coating options for each size. For instance, using a gloss UV coating on a 6x9 postcard can make images pop and add a professional touch. Meanwhile, a matte finish might be more suitable for a 12x15 postcard if you want to emphasize textual content or achieve a more subdued aesthetic. Rounded corners can also add a unique touch to any size, enhancing the tactile experience and helping your postcard stand out from the rest.
Industry Use Cases
Different industries can effectively use various postcard sizes. Real estate professionals often use the 6x11 to highlight high-value listings, while event organizers may prefer the 11x17 size to maximize visibility for upcoming events. Restaurants can benefit from 6x9 postcards to showcase new menu items, offering enticing images that catch the eye. For more industry-specific strategies, check out our real estate postcard tips and learn how to boost your restaurant's revenue in 2026.
Healthcare providers can use the 4x6 postcards for appointment reminders and health tips, ensuring they are cost-effective while maintaining regular communication with patients. Non-profits might choose the 6x9 size for fundraising campaigns, using the additional space to share impactful stories and images that resonate with their audience. Educational institutions may use larger sizes for open house invitations or informational brochures, taking advantage of the extra space to provide necessary details and captivating visuals.
Frequently Asked Questions
- What are the most cost-effective postcard sizes for mass mailing?
The 4x6 postcard is the most cost-effective for mass mailing, benefiting from the lowest postage rates and printing costs.
- How do I choose the right postcard size for my industry?
Consider your marketing objectives and target audience; for example, choose larger sizes like 6x11 for high-impact messages or smaller sizes like 4x6 for personal touches.
- What are the design considerations for oversized postcards?
Oversized postcards, such as the 11x17, should use bold visuals and clear text hierarchies to make the most of the available space while ensuring readability and engagement.
- Can I use EDDM for all postcard sizes?
EDDM is suitable for larger postcards like 6x11, 11x17, and 12x15, ensuring maximum visibility. However, smaller sizes might not be effective for EDDM due to less visual impact.
- How much lead time should I plan for designing and printing postcards?
Typically, allow 1-2 weeks for design and proofing, plus an additional week for printing. Rush options are available if you have a tight deadline.