Coroplast vs. Poly Metal: Which Yard Sign Should You Pick?

Every week somebody asks us some version of the same question: "What material should my sign be?" Fair question. Walk down any street in Gwinnett and two materials are doing most of the work: coroplast and poly metal. They both hold ink, they both go in a yard, and they are not the same thing.

We've been printing signs for over a decade, so here's the honest breakdown: what each one is good at, where it falls short, and which one we'd pick for your job.

The quick answer

• Short-term, budget, or high quantity? Coroplast. Cheap, light, and perfect for events, campaigns, open houses, and anything that doesn't need to last forever.
• Want it to look premium and last longer? Poly metal. Glossy, rigid, and it doesn't bow in the wind.

Coroplast (corrugated plastic)

Coroplast is the classic yard sign. It's corrugated plastic, basically plastic cardboard, with little hollow channels (called flutes) running through it. Those flutes are the secret sauce: an H-stand or step stake slides right up inside them, so there's no drilling, no hardware, and setup takes about four seconds.

Why people love it:

• Lowest cost per sign, especially in bulk
• Lightweight and easy to ship, store, and carry around a neighborhood
• Waterproof and holds up outdoors for typical sign lifespans
• Prints bright, full color on one or both sides

Where it falls short: It can bend in strong wind, it fades after long sun exposure, and it reads "temporary" up close. That's fine for a grand opening, not so fine for a luxury listing.

Best for: open houses, garage sales, campaign signs, graduations, birthdays, "now hiring," contractor job-site signs, and big runs where you need dozens.

👉 Grab single 18x24 custom yard signs, or go big with the 48-pack bulk yard signs (that's where the per-sign price gets silly low). Realtors, check out our coroplast real estate signs.

Poly metal

Poly metal is the sign that makes people ask "where'd you get that?" It's a plastic core sandwiched between thin metal skins, which gives you the stiffness and shine of metal at a fraction of the weight. The gloss finish makes colors pop and headshots look sharp.

Why people love it:

• Stays flat and rigid. No sagging, no flapping
• Glossy, high-end look that matches a high-end brand
• Lasts a lot longer than coroplast outdoors
• Light enough to hang easily from a real estate post or frame

Where it falls short: It costs more per sign than coroplast, and it doesn't have flutes, so it hangs from a frame or post instead of sliding onto a wire stake.

Best for: realtors and brokerages, builder and subdivision signage, and any business that wants its sign to look as good as its logo.

👉 See our gloss poly metal real estate signs.

Side-by-side

	Coroplast	Poly Metal
Cost	$	$$
Weight	Lightest	Light
Outdoor life	Short-term	Multi-year
Look	Bright, casual	Glossy, premium
Mounting	Wire H-stand or step stake	Frame or post

Don't forget the stand

A great sign on a flimsy stake is a sad sign on the ground. For coroplast, an H-stand is the standard, and step stakes are easier to push into hard Georgia clay. Ordering for a whole neighborhood? We sell sign stands in bulk. Need a sidewalk sign instead? An A-frame stand lets you swap coroplast inserts whenever your message changes.

Design tips that make any sign work harder

• Five-second rule: people read yard signs from a moving car. One message, big type, phone number or URL. That's it.
• Contrast over cute: dark text on a light background (or the reverse) beats a busy photo every time.
• Go double-sided if the sign faces traffic from both directions.
• Send vector files (AI, EPS, PDF) when you can. Only have a JPG? That's fine, we'll make it work.

The skater's take

Skaters have been unofficial sign experts forever. Grow up skating and you learn fast which signs in town are built to last, and which coroplast ones end up as launch ramps after the open house ends. (We're not saying. We're just saying.) 🛹

FAQ

How long do coroplast yard signs last outside?
For most uses they hold up great for the life of a campaign, listing, or event. Long-term sun exposure is what wears them down, so for anything you want up for the long haul, step up to poly metal.

Are poly metal signs worth it for realtors?
If your sign sits in front of a listing for months and your name is on it, yes. It stays flat, looks sharp in photos, and reflects your brand better than a bowed plastic sign.

Can you print on both sides?
Yep. Double-sided is available on our yard and real estate signs.

Can you design it for me?
Absolutely. Design is kind of our thing. Check out our design services or just ask for a custom quote.