4mm Coroplast Signs

In stock

4mm Coroplast Signs are the perfect economical option for any business

With 4mm coroplast signage, your customers can create custom yard signs to meet all of their promotional, directional, and political needs (and beyond). Printed in full color on rigid corrugated plastic with optional grommets, they are versatile enough to be placed indoors and durable enough with UV-cured inks and waterproof durability to be staked outdoors. 

At regular temperatures, oils, solvents, and water have no effect on coroplast which also lends nicely to the endurance of the sign. 

Please Note:

When ordering H-stakes, place your rigid sign order with a width size bigger than the height size and order with vertical flutes.

Be aware that the corrugated flute structure results in a very subtle linear effect (faint lines) on the product's surface. The flutes can be horizontal or vertical but are only compatible with H-stakes in a vertical orientation.

4mm Coroplast Sign popular uses

  • Political
  • Yard Signs
  • Real estate
  • Healthcare
  • Educational Institutions
  • Retail


  • Can coroplast be written on?

    Yes, coroplast signs can be written on with a Sharpie.

  • How many H-stakes do you need for a coroplast sign?

    One H-stake is typically sufficient for one coroplast sign, but if the coroplast sign is larger than 24” x 18” then it can be used with two H-stakes for more stability.

  • Can grommets be added to coroplast signs?

    Yes, grommets are available for coroplast signs in all four corners, or in the top two corners, for a small additional charge. The grommets used for 10mm coroplast signs are brass colored with ¾” outside diameter.

  • What size should my text be if I want to view the coroplast sign from a distance?

    Letter Height

    Max Impact Distance

    Max Readable Distance


  • Are coroplast signs typically used indoors or outdoors?

    Coroplast signs are a great option for both indoor and outdoor uses, but are typically used outdoors.

  • Size
    • Width from 6" to 36"
    • Height from 6" to 46"
  • Stock
    • 4mm White Coroplast
  • Colorspec
    • 4/4 (4 color both sides)
    • 4/0 (4 color front)
  • Flute Directions
    • Flute Direction (Horizontal)
    • Flute Direction (Vertical)
  • Finish Options
    • Contour Cut & H-Stakes
    • H-Stakes & Grommets
  • Grommets
    • None
    • All 4 Corners
    • Top Corners Only
  • H-Stakes
    • No
    • Yes
  • Contour Cut
    • No
    • Yes
  • Turnaround Time
    • Next Business Day
    • 2-4 Business Days
    • 5-7 Business Days
File Preparation: For specific instructions see our FAQ’s (e.g. Akuafoil and Spot UV).
Resolution: 300dpi
Color Mode: CMYK
Bleed: 0.125” (0.625 on each side)
File Types: PDF (recommended), JPG, EPS and TIFF