Lawn Sign Size Guide: What Size and How Many Words

18×24 in— the industry standard, and correct for the large majority of jobs. Real estate listings, contractor job sites, election campaigns, open houses, and service businesses advertising on a customer’s lawn. It reads clearly from a car at residential speeds and it is economical enough to buy in bulk and leave behind.

24×36 in — meaningfully larger and noticeably more expensive. Justified when the sign sits well back from the road, when it faces a higher-speed road, or when it needs to hold its own against several other signs on the same street. Also the right size for a development or job-site sign carrying more information.

12×18 in — small. Use for directional arrows at intersections leading to an open house, for parking guidance, and for close-range wayfinding where people are already slowing down. Too small to work as a primary advertising sign.

Rider panels — narrow strips (commonly 6×24 in) that attach above or below a main sign to add SOLD, PENDING, an agent name or a phone number. They let you update status without reprinting the main sign, which is why real estate agents use them heavily.

The most common failure in lawn signs is not that the sign is too small. It is that there are too many words on it, so everything had to be shrunk to fit.

A driver passing at 40–50 km/h has roughly two seconds of usable attention. In that window a person can absorb about five to seven words. That is the real constraint, and a bigger sign does not change it — it just gives you more room to make the same mistake.

What earns a place on the sign: what you do (two or three words), your phone number, and your name or logo. That is usually the whole list.

What does not: a service list, an address, a website in small type, social handles, licence numbers, and a tagline. None of these can be read at speed and all of them steal size from what can.

The phone number should be one of the largest elements on the sign — often the largest after the headline. Someone deciding to call you is doing it from the car.

Legibility at distance is driven by contrast between text and background far more than by which colours you use. Dark text on a light background, or light text on a dark one, reads. Mid-tone on mid-tone does not, regardless of how attractive it looks on screen.

Colour combinations that fail outdoors: red text on a green background and similar complementary pairings, which vibrate and are genuinely difficult for many people to read. Anything with similar tonal value, even in different hues. Thin type in a light colour, which disappears against a bright sky.

Type weight matters too. A bold, simple sans-serif reads at distance; a thin or decorative face does not. Save the personality for materials people hold in their hands.

Test it properly: print the design small, put it on the far side of the room, and see what you can still read. Whatever survives is what should be on the sign.

Lawn signs are printed on coroplast — corrugated plastic. It does not absorb water, so it will not warp in rain, and the internal flutes let it slide onto a wire H-stake. See coroplast vs PVC for how it compares to rigid alternatives.

Flute direction is not a detail. For a staked sign the flutes must run vertically so the stake goes in. If you want the sign mounted rather than staked, say so when ordering — otherwise vertical flutes are assumed.

Double-sided is almost always worth it. A single-sided sign is invisible to half the traffic on the street. The second side costs far less than the first because setup is already done.

Stakes: wire H-stakes are standard, cheap, and fine for turf. In hard or frozen ground — a real consideration for much of the Ottawa year — heavier stakes or a frame are worth specifying. Confirm whether stakes are included when you order; it is a common source of surprise.

Lamination slows UV fading and is worth adding to any sign expected to stay out beyond a single season.

Municipalities regulate signage on public property, boulevards and road allowances, and the rules vary by city and sometimes by ward. Election signage has its own separate set of rules with dates attached.

Signs on private property with the owner’s permission are generally straightforward — which is why the contractor sign on a customer’s lawn is the reliable play. Signs on a boulevard or at an intersection may not be, and may be removed.

We print to whatever size and quantity you need, but we cannot advise on your specific municipality’s bylaws — check with the city before committing to a large quantity intended for public placement. It is a five-minute check that occasionally saves an entire order.