If you've been anywhere near the direct mail world in the last few years, you've probably heard about the 9x12 postcard — the massive shared mailer that's kind of taking over the local business space. I get asked about it all the time. What is it exactly? How does it work? Why 9x12 and not some other size? Does it actually make money? So let me put everything you need to know about the 9x12 postcard in one place. Size, cost, printing rules, USPS specs, and how the 9x12 Method turns one postcard into $5,001 in profit.
A 9x12 postcard is exactly what it sounds like — a postcard that measures 9 inches by 12 inches. Double-sided, full color, printed on thick cardstock. It's the biggest thing you can mail at USPS EDDM (Every Door Direct Mail) rates without jumping to a premium postage tier. It dwarfs a standard 4x6 or 5x7 postcard — literally 4–5 times the surface area.
Why does size matter? Because it doesn't get lost in the junk mail pile. When a 9x12 lands in someone's mailbox, it's physically impossible to ignore. It sticks out. People pick it up. They flip it over. That's the entire strategic advantage.
You know what hasn't ever been redundant? Mail. And the biggest piece of mail in the stack wins every time.
In the 9x12 Method, this oversized postcard isn't used for a single business — it's used as a shared mailer where ~16 local businesses split the card into ad slots. Each business gets a rectangle on the card, pays $500 for their slot, and their ad goes to 5,000 homes in the neighborhood. The operator (that's you) collects all the money, sends it to print, and keeps the difference as profit.
Let me give you the exact specs. These matter because USPS has hard rules about what qualifies for EDDM pricing, and the 9x12 postcard is specifically sized to hit the sweet spot.
9 inches
Width
12 inches
Height
108 sq inches per side
Total surface area
~16 (8 per side)
Ad slots per card
3.8" x 2.8" (portrait)
Typical slot size
4" x 6"
Double slot option
14pt cardstock with UV gloss
Paper weight
Full color, double-sided
Print
"Flat" (qualifies for EDDM)
USPS category
Why 9x12 specifically? Because USPS has size minimums for EDDM eligibility — a piece must be more than 6.125" high, OR more than 11.5" long, OR more than 0.25" thick. The 9x12 clears all of those easily. Below those dimensions, you'd pay regular first-class postage (~73¢ per piece). With EDDM, you pay ~26¢ per piece. That's the difference between a profitable business and one that doesn't work at all.
And 12 inches is the maximum length before you jump to "non-machinable" postage. So 9x12 is the largest size you can mail at the cheapest rate. That's not an accident — it's the whole point.
Full-color, double-sided printing on 14pt cardstock with UV gloss
5,000 pieces
Packaging and bundling by USPS mail route
Facing slips prepared for every bundle
Delivery drop at your local post office for EDDM
That $2,999 includes postage. It includes everything. You don't write a separate check to USPS. You don't deal with facing slips. You don't bundle. It shows up at the post office ready to mail.
Just so you know what the alternative looks like, here's what DIY-ing a 9x12 postcard typically costs:
Printing (5,000 cards through a local printer): $1,800–$2,400
Postage (EDDM rate): about $1,300
Your time to bundle, prep facing slips, drive to USPS: 3–5 hours
Total cash cost: $3,100–$3,700 plus half a day of work
Honestly, the All Inclusive service usually costs less than doing it yourself, and you don't have to deal with the logistics. When you're running 2–3 cards a month, that time savings is everything.
Here's the money math that makes this whole thing work:
9" x 12"
Card size
~16 (8 per side)
Ad slots
$500
Price per slot
$8,000
Revenue per card
$2,999 All Inclusive
Print + fulfillment
$5,001
Profit per card
5,000
Homes mailed
$0
Upfront capital needed
~30 days
Time to fill card #1
That's one 9x12 postcard. $5,001 profit. Zero upfront capital (because you collect from advertisers BEFORE you pay for printing). Most operators run 2–3 cards a month once they find their rhythm. That's $10,002–$15,003 in monthly profit from mailing postcards.
If you're going to print a 9x12 postcard, whether through us or a local printer, here's what you need to know so your cards don't get rejected at USPS.
Weight: 14pt cardstock. This is the 9x12 Method standard and exactly what we print. It's substantial in the hand, survives USPS processing without bending, and keeps the print economics working. 16pt costs more without recipients noticing a difference. Don't go below 14pt.
Finish: UV gloss. It makes the colors pop the moment the card lands, and it's what we run on every card.
Why UV gloss: Beyond the visual punch, it protects the card from water and handling damage between printing and mailing.
A branded header at the top — something like "Your Neighborhood Guide" or "[City] Local Spotlight" — that makes the card feel like a community resource, not junk mail
8 ad slots, each roughly 3.8" x 2.8"
Each slot has the business name, offer/coupon, phone number, QR code, and sometimes a logo
Most slots are the standard 3.8" x 2.8" portrait, but some operators sell "double slots" for $1,000 — twice the space, more visual presence, fewer of them on the card (so 14 slots instead of 16). This creates a premium tier that appeals to bigger local businesses like dealerships or regional chains.
Why not a 6x9 postcard? Or a 5x7? Or an 11x17? Here's the breakdown.
Postcard size
EDDM eligible?
Postage rate
Visibility
4x6
No (too small)
First-class (~54¢)
Low — easy to toss
5x7
No (too small)
First-class (~54¢)
Low to medium
6x9
No (just below)
First-class (~54¢)
Medium
9x12
Yes
EDDM (~26¢)
Very high — dominates mailbox
11x17
Yes
EDDM + oversize
Too big — awkward, higher print cost
6x11
Yes (community card)
EDDM (~26¢)
Medium-high (smaller but still qualifies)
9x12 is the sweet spot. Big enough to dominate the mailbox. Small enough to fit standard printing presses. Specifically sized to clear USPS EDDM requirements without triggering oversize surcharges. It's literally the best size for this business, and that's not a coincidence — the 9x12 Method is built around this exact dimension.
If the full 9x12 postcard feels too big a commitment for card #1, there's a smaller option. The community card is a 6"x11" postcard — still EDDM-eligible, still 16 slots, but at a smaller scale:
Metric
9x12 Postcard
Community Card
Size
9"x12"
6"x11"
Homes mailed
5,000
2,500
Price per slot
$500
$250
Revenue
$8,000
$4,000
Print + fulfillment
$2,999
$1,449
Profit
$5,001
$2,551
Time to fill
~30 days
~2 weeks
A lot of beginners start with the community card because $250 per slot is easier to sell than $500, and 2 weeks to fill feels less daunting than 30 days. Once they get a few community cards under their belt, they graduate to the full 9x12 postcard.
Okay so we've covered the physical postcard — what it is, how it's sized, what it costs. But how does the 9x12 Method actually turn that postcard into profit? Here's the full sequence.
Pick your target area. Use the USPS EDDM tool at eddm.usps.com to select mail routes in your target zip code. Pick 5,000 households in a decent-income neighborhood.
Identify 16 local businesses to pitch for ad slots. Best industries: roofers, HVAC, landscapers, dentists, auto services, painters, realtors, car dealers.
Reach out — via email, Facebook groups, cold calls, or door-to-door. Pitch each business on a $500 slot with non-competing exclusivity ("you'd be the only roofer on this card").
Close 16 slots. Collect $500 from each advertiser upfront = $8,000 total. You have $0 out of pocket at this point.
Gather ad designs from each advertiser. Most operators use a $25/ad design service (in our community) to make the ads look professional and consistent.
Submit the full 9x12 postcard to print through print.9x12method.com for $2,999 All Inclusive. They print, bundle, add facing slips, and drop at USPS.
3–5 business days later, your 9x12 postcards are in 5,000 mailboxes. Your advertisers start getting QR scans, calls, and walk-ins.
30 days later, send each advertiser a results report. Pitch them for card #2. Most renew. You pocket $5,001 profit and start the cycle again.
That's the 9x12 Method in 8 steps. No gimmicks. No AI. No dropshipping. Just a physical postcard, sold to local businesses, mailed to real neighborhoods, and tracked with real results.
Everyone always asks me: "Why does this work when everyone's online?" Here's the real answer.
Digital saturation killed digital advertising. Every local business is on Facebook, Google, and Instagram. The feeds are overwhelmed. Ad costs have tripled in 5 years. Click-through rates have plummeted. Local businesses are burning money on digital with nothing to show.
Physical mail is uncrowded. The average person gets maybe 3–5 pieces of mail a day now. A decade ago it was 10+. The mailbox is a blue-ocean channel. Mail actually gets looked at because there's less of it.
Size matters in the mailbox. Even in an uncrowded mailbox, a 4x6 postcard gets tossed. A 9x12 gets picked up. It's basic physics — the biggest thing wins.
Trust is local again. People want to support local businesses. A 9x12 postcard with 16 local businesses on it feels like a community resource, not an ad. That framing changes everything.
EDDM pricing is insane. ~26¢ per household. Try doing that on Facebook. You can't.
Full transparency — I teach the full 9x12 Method (scripts, templates, coaching, and 2,800+ members helping each other) inside the community. But you absolutely don't need to join to start. Everything about the actual postcard — size, cost, printing specs, USPS rules — is covered right here in this post. The community is for the sales side, the scaling, and the accountability. But the physical 9x12 postcard itself? It's sitting right there in the USPS system waiting for you.
A 9x12 postcard is an oversized postcard measuring 9 inches by 12 inches — the biggest size that qualifies for USPS EDDM (Every Door Direct Mail) bulk rates. In the 9x12 Method, it's used as a shared mailer with 16 ad slots, each sold to a local business for $500, and mailed to 5,000 homes in a neighborhood.
Through print.9x12method.com, a 9x12 postcard costs $2,999 All Inclusive to print on 14pt cardstock with UV gloss, bundle, and mail to 5,000 homes via USPS EDDM. That includes printing, packaging, facing slips, and the USPS drop-off — no hidden costs. DIY pricing runs $3,100–$3,700 between printing and postage separately.
A 9x12 postcard is exactly 9 inches wide by 12 inches tall (or vice versa — it works landscape or portrait). It's printed on 14pt cardstock with UV gloss, double-sided, with full-color printing. The size is specifically chosen to clear USPS EDDM dimensional requirements (must exceed 6.125" high or 11.5" long).
One 9x12 postcard with 16 slots sold at $500 each generates $8,000 in revenue. Print + fulfillment costs $2,999 All Inclusive. That's $5,001 in profit per card. Since advertisers pay upfront, there's $0 out-of-pocket investment required from the operator.
First-time operators typically take around 30 days to fill a 9x12 postcard with 16 advertisers. Experienced operators with a renewal pipeline fill cards in 1–2 weeks. Using Facebook groups, cold email, Lead Scout for prospects, and door-to-door outreach are the fastest channels.
Yes — the 9x12 postcard is specifically sized to qualify for USPS EDDM (Every Door Direct Mail). It clears the minimum dimensions (must exceed 6.125" high or 11.5" long) and falls within the maximum 12"x15" EDDM size limit. EDDM postage is about 26 cents per piece, dramatically cheaper than first-class mail.
And that's the full breakdown of the 9x12 postcard. The physical product, the cost, the printing specs, the economics, and how the 9x12 Method turns one oversized postcard into $5,001 of profit.
As always, I'm rooting for you. Keep winning.
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Mitchell Tebo
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