Coroplast Yard Signs (4mm Corrugated Plastic)
Coroplast is the fluted polypropylene board every outdoor yard sign is made from. We print one grade of it — genuine 4mm — in full color with UV latex inks.
- 4mm board, the standard weight for stake-mounted outdoor signs
- Vertical flutes so the H-stake slides in without tools
- UV latex inks rated for 12+ months of direct sun
- Every sign ships with a galvanized H-stake at no extra charge, so the price you see is the price that goes in the ground.
Build your order
Ships next business dayPer sign
$12.99
$17.99 Save 28%
Order total · 10 signs
$129.90
Free shipping included
- Metal H-stake included with every sign
- Same-day production on print-ready art by 12pm PT
- 2 to 5 business days after production
Trusted by realtors, contractors and campaigns
100% reprint guarantee on print defects
Ships Same Business Day
Print-ready orders placed by 12pm PT go on press today.
Metal H-Stakes Included
One galvanized stake per sign, free. Elsewhere that is about $2 a sign.
Full Color Both Sides
Single or double sided at the same turnaround, no setup fees.
Weatherproof 4mm Coroplast
UV latex inks. Rain, sprinklers and sun rated 12+ months.
Free Shipping Over $99.00
Flat $9.95 under that, on any quantity.
What coroplast actually is
Coroplast is corrugated polypropylene: two flat sheets bonded across a fluted core, like plastic cardboard. It is rigid, waterproof, will not rust or delaminate, and weighs little enough that a single metal stake holds a 24 x 36 board upright. The flutes run vertically on our signs so the prongs of an H-stake slot straight in.
Why flute direction matters
Flutes running the wrong way make a sign impossible to stake and easy to fold in wind. Every board here is cut with flutes parallel to the stake, which is also why the sign stands up to being pulled and re-planted through a season.
Printing on coroplast
We print edge to edge with UV latex inks that cure on the surface of the board rather than soaking in. Supply artwork at 100 DPI at full size with 0.125 in bleed and a 0.5 in safety margin; templates for all three sizes are on the artwork guidelines page.
Published pricing
Every 18 x 24 price, per sign
Includes full-color printing and a metal H-stake. Free shipping over $99.00, flat $9.95 below it.
| Qty | Single sided | Double sided |
|---|---|---|
| 1 | $14.99 | $17.99 |
| 5 | $12.99 | $15.49 |
| 10 | $10.99 | $12.99 |
| 25 | $9.49 | $11.49 |
| 50 | $8.49 | $10.49 |
| 100 | $7.49 | $9.49 |
| 250 | $6.99 | $8.99 |
Need another size? The full price matrix for all three sizes is on the main yard sign page.
Questions about coroplast signs
- Is coroplast the same as corrugated plastic?
- Yes. Coroplast is the common trade name for corrugated polypropylene board. We print 4mm, the standard weight for stake-mounted outdoor signs.
- How long does a coroplast sign last outdoors?
- 12 or more months of normal outdoor exposure with UV inks. Rain, sprinklers and heat are not a problem.
- Can coroplast signs be recycled?
- Coroplast is polypropylene, resin code 5. Many municipal programs accept it; check locally, and remove the metal stake first.
More answers on the yard sign FAQ, or call (323) 555-0188.
Keep looking
Related sign pages
18x24 Yard Signs
The default size for real estate, campaigns and contractors. Readable from the street, priced from $10.99 per sign at ten, stake included.
Double Sided Signs
One board, both faces printed, one stake. On any street where cars pass from both directions, double sided is the cheaper impression.
Cheap Yard Signs
The lowest published price here is $5.49 per sign — single-sided 12 x 18 at 250 units, stake included. Compare that against any quote that adds $2 a stake at checkout.
Need 250 or more?
Campaign season pricing.
500+ signs, ask about volume rates. Send quantity and your in-hands date and you get a quote back the same business day.