What is the 9x12 method?

The 9x12 method is a cooperative direct mail model. One person — the operator — sells advertising space on a single oversized postcard, then mails that card to every household on a set of USPS carrier routes. Each advertiser pays for one square. The operator pays for printing and postage once, and keeps whatever is left.

That is the entire business. Everything else is execution.

The model in one paragraph

You pick a neighborhood. You sell ten to sixteen local businesses a spot on a 9x12 postcard going to every home in it. You collect the money, print the card, drop it at the post office under the EDDM program, and the carrier delivers it with the mail. A dentist who would never buy a solo mailing to 5,000 homes will happily pay a few hundred dollars to be on a card with eleven other businesses they already know.

The advertiser gets reach they could not afford alone. The homeowner gets one useful card instead of twelve pieces of junk. The operator gets the spread.

The real math

There is a lot of invented income on the internet about this model, so here is the arithmetic from data rather than from a testimonial.

Across 76 live operator sites in 81 markets, we found the median community card ad spot sells for $477 per mailing. A card with eight sold spots at that median grosses $3,816.

Against that, a typical 5,000-piece 9x12 EDDM drop costs:

Line item	Typical range
Printing (5,000 × 9x12, 4/4, 14pt)	$1,209
EDDM Retail postage (26¢/piece)	$1,300
Bundling, banding, paperwork	Your afternoon, or ~$150
Total per drop	$2,509

So a card that sells eight of its twelve spots grosses $3,816 and clears about $1,300. A card that sells out clears substantially more, because the cost of the drop does not change with the number of spots sold — every square you sell after break-even is nearly pure margin.

That last sentence is the whole business. Your printing and postage are fixed. Your revenue is not. Which is why the operators who do well are not the ones with the nicest cards; they are the ones who fill them.

Why the postcard is 9x12

Two reasons, and both are structural rather than aesthetic.

Response. A 9x12 piece cannot be shuffled into the middle of a stack of mail. It arrives on top, face up, and it gets looked at before it gets sorted. That is why the format survived the collapse of most other direct mail.

Postage. USPS’s Every Door Direct Mail program has size limits, and 9x12 sits inside the flat-size envelope for EDDM Retail. Go bigger and you leave the program and the economics stop working. Go much smaller and you cannot fit enough legible ad spots to make the card worth selling.

6x11 is the other common size for exactly the same reasons at a smaller scale — fewer spots, lower print and postage cost, easier first drop.

How EDDM actually works

EDDM — Every Door Direct Mail — lets you mail to every address on a USPS carrier route without buying a mailing list or knowing a single name. You are buying a neighborhood, not a set of people.

The workflow is:

1. Choose your routes. Each carrier route covers roughly 300–800 homes. You pick the ones you want by looking at household counts, average income and the geography your advertisers care about.
2. Print the exact count. You mail to every address on the route, so your print quantity is the sum of the household counts, not a round number you picked.
3. Bundle in 50s or 100s. Each bundle gets a facing slip. This is the part everyone underestimates the first time and the part that turns a drop into an afternoon.
4. File the paperwork. PS Form 3587 for EDDM Retail, plus a permit or a payment at the counter.
5. Drop at the delivery unit for those routes. Not any post office — the one that serves the routes.

None of this is hard. All of it is fiddly, and it is the reason operators either buy software or lose a weekend a month.

Pricing your spots

There is no correct price, but there is a correct method: price against the value of the audience, not against your costs.

Work out your cost per thousand homes. A 5,000-home drop costing $2,509 is about $500 per thousand. Then decide what share of that a single advertiser is buying. A business taking a large anchor spot on a card reaching 5,000 homes for $900 is paying $180 per thousand — cheaper than almost any other local channel they can buy, and you can say that out loud in the sales conversation.

A workable starting grid for a 5,000-home 9x12:

Spot size	Count	Typical price
Anchor / mega	1–2	$900 – $1,500
Large	2–3	$700 – $900
Medium	4–6	$400 – $600
Small	4–6	$200 – $350

Raise prices on the second drop, not the first. Your first card’s job is to exist and to give you eleven advertisers who can see their own ad in a mailbox.

Who buys a spot

The businesses that renew have three things in common: a local service area, a high transaction value, and a recurring need. That means:

• Dentists, orthodontists, med spas
• HVAC, plumbing, electrical, roofing
• Garage doors, windows, gutters, pest control
• Real estate agents and mortgage brokers
• Restaurants with a coupon offer
• Gyms, martial arts studios, dance schools
• Auto body, tire shops, detailing
• Lawn care, landscaping, tree service

The ones that struggle are businesses with a low ticket and no local radius — a $12 average sale cannot pay back a $500 spot, and no amount of design fixes that. Qualifying the advertiser is more of the job than selling them.

The part that kills most operators

It is not selling. It is collecting.

A card is an inventory of squares that each exist exactly once and expire on a mail date. The moment you sell them with pasted payment links and a spreadsheet, four things start going wrong, and every operator who has run more than three drops has hit all four:

• The price on the card and the price on the link drift apart the first time you raise a spot.
• Two businesses pay for the same square because you had not marked the first one sold yet.
• “Five hundred a month” isn’t real, because a payment link cannot hold a card on file — so you re-sell the same eleven people, eleven times a year.
• The artwork deadline passes and you are chasing four logos by text message the night before the printer’s cutoff.

None of those are website problems, which is why buying a website builder does not solve them.

How to run your first drop this month

1. Pick one neighborhood you know. Not your whole city. One set of routes with 4,000–6,000 homes.
2. Build the card before you sell it. A real layout with real prices on real squares closes far better than a description of a card.
3. Sell four spots to break even. Walk in with the card, not a pitch deck. Show them square 4 and tell them the price and the mail date.
4. Set a hard artwork deadline ten days before your printer’s cutoff, and put it on the invoice.
5. Choose routes and file the EDDM paperwork. Print exactly the household count.
6. Get the drop delivered, then go back with the card in your hand and sell the next one. The second card is always easier than the first.

What to do next

If you want the business model in more depth, read how to start a postcard marketing business for startup costs and response-rate data, or co-op postcard advertising for how to explain the shared-cost idea to an advertiser who has never heard of it.

If you already know the model and the part you want fixed is the selling and collecting, that is what this platform is.