Coroplast® Yard Signs

About Coroplast®


Coroplast® is ideal for indoor and outdoor applications. It is tougher than corrugated fiberboard and lighter than extruded plastic sheet. It is waterproof and stain-resistant.


Corrugated plastic, also known by the brand name Coroplast®, is a tough, waterproof, plastic sign material which resembles the appearance of “plastic cardboard.”


The hollow-fluted design of Coroplast® makes this sign material extremely lightweight, easy to handle and simple to display in a number of ways.


The lightweight properties of Coroplast® makes it extremely versatile, and has made it a popular alternative to rigid Acrylic Plastic Signs and PVC Plastic Signs.


Coroplast® signs are also commonly preferred over poster board and foam core mounting board. Foam core is not waterproof and the surface is much more sensitive to damage than corrugated plastic.


  • Lightweight
  • Reusable
  • Chemical Resistant
  • Stain Resistant
  • Moisture Proof
  • Strong and Durable
  • Easy to Fabricate


Custom designs


The 18 x 24 Standard Corrugated Plastic Business Signs can be custom designed for you.

  • We print our coroplast signs full color digitally for greater impact.
  • We print in full color UV resistant inks.
  • Printing on weather-tough, durable corrugated plastic avoids repeat sign replacement costs.


Large Format Signs and Custom post kits

  • Larger size ranges and vinyl post kits are available.


Coroplast® Stock Sheets


Many standard colors and sizes are available.


Standard colors:


  • White
  • Black
  • Green
  • Yellow
  • Orange
  • Dark blue
  • Light blue
  • Ivory
  • Red
  • Standard Sizes:
  • 4’x8’
  • 4’x4
  • 36”48”
  • 36”x24”
  • 18”x24”
  • 12”18”



1907 Pennsylvania Drive, Columbia, MO, 65202