The sign stuck in your lawn is the newest branch of a very old family tree. Here's how we got from painted walls in Pompeii to the full-color corrugated plastic signs we print today, and what that history still teaches about making a sign that works.
It starts on a wall in Pompeii
Long before anybody owned a wire stake, people were putting messages in front of passersby. The best-preserved early examples come from Pompeii, the Roman town buried by Mount Vesuvius in 79 AD. Its walls still carry painted electoral endorsements, called programmata, urging neighbors to vote for one candidate or another for local office.
Read a few of them and they feel oddly familiar. A name, an office, and a short reason to care, painted big enough to read from the street. That's a campaign sign. The material was a plastered wall instead of plastic, but the job was the same: put a name where voters walk past it every day.
Roman shops used signs too. Taverns hung bunches of vine leaves out front so people knew wine was sold inside. No words needed. That idea, a picture that tells you what's going on before you read a thing, never went away.
Hand-painted shop and tavern signs
For most of history, most people couldn't read, so business signs leaned on pictures. A boot for the cobbler. A key for the locksmith. A painted animal or crown hanging over the door of an inn. You didn't need to spell "bakery" when you could hang a carved loaf.
In England, signs got a push from the law. In 1393, King Richard II required publicans to hang a sign outside their premises, which helped officials keep track of who was selling ale. That's one reason British pubs still have such distinctive painted signs.
Through the following centuries, sign painting became a real trade. Painters lettered shop fronts, wagons, and boards by hand, and the best of them could lay out a clean, readable line of text freehand. A lot of the rules we still follow, like keeping letters bold, leaving breathing room around them, and putting the most important word biggest, were worked out by those painters with a brush in their hand.
Burma-Shave and the roadside sign
Cars changed everything. Once people were traveling at speed along open highways, signs had to be read in a few seconds from a moving vehicle. The most famous answer was Burma-Shave.
From 1925 to 1963, the shaving cream company planted small signs along American roadsides in a series, spaced out so drivers read one line at a time. Each set built up a short rhyming joke and ended with the brand name. People looked forward to them. Families read them out loud on road trips.
The lesson in those signs is one we still give customers every week: a driver can only take in a few words per sign. Burma-Shave got around that by splitting the message across several boards. On a single yard sign, you don't get that luxury, so you keep it to a handful of words and make them big. Our yard sign design tips go deeper on that.
As roadside advertising multiplied, the government stepped in. The Highway Beautification Act of 1965 set rules for outdoor advertising along federal-aid highways, which is part of why you don't see signs stacked along every interstate today. That law still shapes where certain signs can go, a topic we cover in where you can (and can't) put yard signs.
The screen-printed lawn sign takes over
Through much of the 20th century, campaign and real estate signs were often painted or printed on wood, cardboard, or metal. Screen printing made it practical to run hundreds or thousands of identical signs in a couple of flat colors, and that's when the political lawn sign as we know it really spread.
Screen printing pushes ink through a fine mesh stencil, one color at a time. It's fast and durable once it's set up, but every color needs its own screen. That's why so many classic campaign signs are just two colors: a candidate's name in white on a solid blue or red field. Fewer colors meant lower setup cost, and the bold, simple look happened to read beautifully from a car.
Those limits shaped a style that's still around. Plenty of candidates today choose a two-color look on purpose, not because they have to, but because it's clean and readable.
Corrugated plastic and the wire stake
The next big shift was material. Corrugated plastic, often called coroplast, is two thin plastic walls with vertical ribs, or flutes, running between them. It's light, it shrugs off rain, and it's cheap enough to print in quantity. The standard thickness today is 4mm.
Pair that with a wire H-stake and you have the yard sign nearly everyone pictures. The stake is a bent wire shaped like a capital H, roughly 10 inches wide and 30 inches tall. The two top legs slide up into the flutes of the sign, and the bottom legs push into the ground. No hammer, no wood, no screws. A volunteer can set out dozens in an afternoon.
Real estate signs took a slightly different road. Agents tend to use sturdier frames, metal or wood posts, and small add-on "riders," commonly 6 by 24 inches, that hang under the main panel to say things like "Sold" or "Open House." The idea is the same though: a light, swappable printed panel on a reusable support. We carry the current versions of those setups too.
Digital UV printing: full color, any quantity
Today, a lot of yard signs are printed on flatbed digital printers that use UV-cured inks. The printer sprays ink straight onto the plastic, and ultraviolet lights cure it almost instantly. There are no screens to make, so full-color photos, gradients, and logos cost about the same to set up as a simple two-color design.
That opened the door for people who used to be priced out. A small business can order a short run of signs for a weekend sale. A family can order a single graduation sign with a photo of their senior. A church can print a different design for every season. Screen printing still has a place for very large runs of simple artwork, but digital made small orders practical.
Durability expectations haven't changed much, though. Corrugated plastic is built for a season, not a decade. Sun and wind are what wear it out. For signs that need to last years, shops reach for aluminum or aluminum composite panels instead. Our yard sign materials guide compares the options side by side.
What 2,000 years of signs still teach
Strip away the materials and the rules of a good sign have barely moved since Pompeii.
| Era | Typical sign | Lesson that still holds |
|---|---|---|
| Ancient Rome | Painted wall endorsements, vine-leaf tavern signs | Name and a reason, placed where people walk every day |
| Medieval to early modern | Hand-painted pictorial shop and pub signs | A picture or symbol reads faster than words |
| 1925 to 1963 | Burma-Shave roadside serials | Drivers only catch a few words per sign |
| Mid 20th century | Screen-printed two-color lawn signs | High contrast and few colors read from a distance |
| Today | Digitally printed corrugated plastic on H-stakes | Full color is easy now, but simple still wins |
- Location beats everything. A great sign nobody sees does nothing.
- Short messages win. Think 3 to 7 words for a sign people drive past.
- Contrast matters. Dark on light or light on dark, never mid-tone on mid-tone.
- Size your letters for the distance. About 1 inch of letter height per 10 feet of viewing distance is a solid rule. Our letter height calculator does the math.
Quick questions
Were there really campaign signs in ancient Rome?
Yes. The walls of Pompeii, buried in 79 AD, still carry painted electoral endorsements called programmata that urged neighbors to vote for candidates for local office.
Why are so many classic campaign signs only two colors?
Screen printing needs a separate screen for every color, so fewer colors kept setup costs down. The bold two-color look also reads well from a car, which is why many candidates still choose it.
Is screen printing still used for yard signs?
Yes, mostly for very large runs of simple artwork. Digital UV printing has made short runs and full-color designs practical, so many orders are printed digitally now.
How long does a corrugated plastic yard sign last?
Typically months outdoors, not years. Sun and wind are what wear it out, so for signs meant to last years, aluminum or aluminum composite panels are a better choice.
MySignPal guides are general information to help you plan. Print specs vary by printer, and sign rules vary by city, county and state; confirm local requirements before you install.