Signage & Display
Coroplast (corrugated plastic)
The cheap, light, weather-resistant fluted plastic behind yard signs and real-estate signs.
“The cheapest outdoor sign there is. A season or two, not forever.”
Good to know
- It's cheap and semi-disposable, which is the whole point. Buy it in volume for yard and event signs. Skip it for anything viewed up close, where the flutes show.
- It survives a season or two outdoors, then the sun gets it. Right for a campaign, wrong for permanent.
What it is
A fluted polypropylene sheet, basically plastic cardboard. Dirt cheap, water-resistant, and stake-mountable. The default for short-term outdoor yard and event signs.
Choose it when
You need many cheap, lightweight outdoor signs fast. Choose it over PVC when budget and quantity matter more than finish or longevity.
Strengths
- Cheapest rigid outdoor option
- Light and water-resistant
- Mounts on H-stakes in seconds
Watch-outs
- – Flute texture can show through on close-up, light-color, or heavy-ink graphics
- – Less UV-resistant; degrades faster outdoors than PVC (~2–5 yr)
Not the right call for: Premium or close-viewed signage · Permanent installations
Jargon, decoded
Hover or tap a term for a plain-English definition.
Questions people ask
How long do Coroplast yard signs last outside?
A season or two. It's water-resistant but UV-degrades over time. Perfect for campaigns, wrong for permanent.
Why do faint lines show in my print?
The fluted core can telegraph lines, most visible on light colors and heavy ink. For close-up viewing, choose PVC foam instead.
Can I stake it in the ground?
Yes. H-stakes slide right into the flutes. It's the standard for yard and event signs.
Where this fits in our work
We don't stop at the print. Coroplast (corrugated plastic) runs through the same network that specs and fabricates it, then installs it on site. The work behind it: