Design 5 min read
EDDM Postcard Size Comparison: 6.5x9 vs 6x11 vs 8.5x11 vs 9x12
Adil Moussa
Founder, EDDM Omaha
Size Matters in the Mailbox
USPS Every Door Direct Mail requires postcards to meet specific dimension constraints (must be larger than 6.125" x 11.5" OR longer than 6.125" OR taller than 11.5"). Choosing the right size impacts visual impact, print cost, and conversion strength.
The Top 5 EDDM Sizes Explained
- 6.5" x 9": The Standard Workhorse. Great balance of visibility, cost, and layout space. Perfect for restaurants, salons, and local coupons.
- 6" x 11" / 6.25" x 11": The Menu & Service Special. Extra height provides room for multi-offer layouts, service checklists, and bulleted benefits.
- 8.5" x 11": The Big & Premium Statement. Letter-sized mailer impossible to miss. Essential for high-ticket home services, roofers, and legal/financial mailings.
- 4.25" x 11": The Tall & Skinny Bookmark. Excellent for door hanger style cards, bookmarks, and budget-friendly promotions.
- 9" x 12": The Jumbo Spotlight. Maximum physical presence. Best for multi-business co-marketing or flagship local promotions.
Topics:Postcard SizesEDDM SpecsUSPS GuidelinesDesign Tips
Turn This Guide Into a Campaign
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Written By
Adil Moussa
Founder, EDDM Omaha
Adil Moussa has 23+ years of real-world marketing and customer acquisition experience helping local Omaha businesses drive visibility, phone calls, and revenue through strategy-driven direct mail and EDDM campaigns. He is the Founder of HuskerPrint and HuskerPay.
