Best EDDM Postcard Sizes: Complete USPS Size Guide for Every Door Direct Mail
Choosing the right EDDM postcard size can have a significant impact on the success of your direct mail campaign. Larger postcards generally receive more attention, provide more space for your marketing message, and often generate stronger response rates than smaller mail pieces.
Whether you're advertising a restaurant, roofing company, HVAC business, dental office, real estate agency, or local service company, selecting the correct postcard size is one of the most important decisions you'll make.
If you're looking for professionally printed EDDM Postcards, understanding your size options is the first step toward building a successful campaign.
What Size Must EDDM Postcards Be?
USPS Every Door Direct Mail requires mail pieces to qualify as flats rather than traditional small postcards.
To qualify for EDDM, your mail piece must generally be larger than a standard postcard and fall within USPS flat-size guidelines. USPS allows EDDM pieces up to 15 inches long and 12 inches high, making oversized postcard marketing possible. USPS guidance specifically identifies oversized postcard formats as among the most popular EDDM options.
Most Popular EDDM Postcard Sizes
| Size | Best Use | Visibility Rating |
|---|---|---|
| 6.25" x 9" | Budget campaigns | Good |
| 6.5" x 9" | General local marketing | Very Good |
| 6.25" x 11" | Service businesses | Excellent |
| 8.5" x 11" | Restaurants, roofing, real estate | Outstanding |
| 9" x 12" | Premium campaigns | Elite |
Why Larger EDDM Postcards Usually Win
Most businesses focus on saving money when choosing postcard sizes.
The smarter question is:
Which size generates the most revenue?
A larger postcard costs slightly more to print but often receives substantially more attention in the mailbox.
When homeowners sort through their mail, oversized postcards naturally stand out against envelopes, bills, and smaller advertisements.
This additional visibility often translates into:
- More phone calls
- More website visits
- More coupon redemptions
- Higher response rates
- Better return on investment
6.5" x 9" EDDM Postcards
The 6.5" x 9" postcard is one of the most popular EDDM sizes because it balances affordability and visibility.
Ideal for:
- Restaurants
- Landscapers
- Chiropractors
- Dentists
- Retail stores
- Local promotions
This size provides enough room for:
- Strong headline
- Photos
- Coupons
- Contact information
- QR codes
8.5" x 11" EDDM Postcards
If your goal is maximum response rate, the 8.5" x 11" format is often considered the sweet spot.
This format is especially effective for:
- Roofing companies
- HVAC contractors
- Real estate agents
- Home improvement companies
- Solar companies
The additional space allows businesses to include:
- Before and after photos
- Customer testimonials
- Multiple service offerings
- Detailed promotions
- Financing offers
Many successful EDDM campaigns use this size because it dominates the mailbox while remaining cost-effective.
9" x 12" EDDM Postcards
The 9" x 12" postcard is one of the largest commonly used EDDM formats.
When a homeowner receives a 9" x 12" postcard, it is difficult to ignore.
This size is commonly used by:
- Luxury real estate agents
- Roofing companies
- Medical practices
- Political campaigns
- Premium service providers
For businesses with higher customer values, the increased visibility often justifies the slightly higher print cost.
Best EDDM Postcard Size By Industry
| Industry | Recommended Size |
|---|---|
| Restaurants | 8.5" x 11" |
| Roofing | 8.5" x 11" or 9" x 12" |
| HVAC | 8.5" x 11" |
| Real Estate | 9" x 12" |
| Landscaping | 6.5" x 9" |
| Dentists | 6.5" x 9" |
| Chiropractors | 6.5" x 9" |
Does Bigger Always Mean Better?
Not necessarily.
A poorly designed large postcard will still perform worse than a well-designed smaller postcard.
However, when design quality remains equal, larger postcards often produce stronger response rates because they attract more attention and provide more space to communicate value.
Design Tips For Every EDDM Postcard Size
Use One Main Headline
Your headline should communicate the primary benefit immediately.
Use Large Photos
Professional photography consistently improves postcard performance.
Include Social Proof
Reviews, testimonials, ratings, and guarantees build trust.
Create One Strong Offer
A single compelling offer usually outperforms multiple weak offers.
Add A Clear Call To Action
- Call Today
- Book Online
- Schedule A Free Estimate
- Claim Your Discount
- Scan The QR Code
Common EDDM Size Mistakes
- Choosing the smallest size solely to save money
- Using tiny text
- Overcrowding the design
- Using low-quality photos
- Failing to include an offer
- Missing contact information
- Ignoring USPS size requirements
Why Businesses Choose BlockbusterPrint For EDDM Postcards
BlockbusterPrint offers professional EDDM Postcards designed to help local businesses generate more leads and sales.
- Multiple postcard sizes
- High-quality printing
- Fast production
- Full-service EDDM options
- USPS-compliant products
- Nationwide service
Frequently Asked Questions
What is the best EDDM postcard size?
For many businesses, 8.5" x 11" provides the best balance of visibility, response rate, and affordability.
What is the largest EDDM postcard size?
USPS allows EDDM pieces up to 15" long and 12" high, though 9" x 12" is one of the most common large formats. 1
Do larger EDDM postcards perform better?
In many cases, yes. Larger postcards typically receive more attention because they stand out in the mailbox.
Can BlockbusterPrint print EDDM postcards?
Yes. BlockbusterPrint offers professional EDDM postcard printing for businesses nationwide.
Order Professional EDDM Postcards Today
If you're ready to launch a local direct mail campaign, explore BlockbusterPrint's complete selection of EDDM Postcards and start reaching more customers with Every Door Direct Mail.
