What is Coroplast®?

Coroplast® is the leading brand of corrugated fluted plastic. It’s known for its rich, vibrant colors, high-quality, and durability. It’s extruded polypropylene twin-wall plastic, chemically inert, and free from additives.

Coroplast® brand mixes color pigment into their resin which is fed into the machines at the time of extrusion. The pigment and resin are fully blended and then extruded, resulting in color consistently all the way through the sheet. The process creates a smooth, sleek finish.

Stacked Coroplast sheets in various colors

Some brands can be ink-printed in a variety of colors on white corrugated plastic, creating a more matte finish, but may deteriorate over time for this application. Some others may use less pigment resulting in less vibrant colors.

Coroplast® comes in thicknesses from 2mm - 10mm. We only use 4mm, which is ideal for cage bases, any thicker is too rigid and unnecessary; any thinner is too flimsy. There's a variety of 14 standard colors. We also have a custom Pink and Lime color made for us at CCCages.

If you do make your own base and can fit a 4x8 foot sheet in your vehicle, Home Depot carries Coroplast® brand in 4mm (white only), and www.Polymershapes.com carries all 14  Coroplast® colors and has locations throughout the US and Canada.

Benefits include:


Inert to nearly all acids, chemicals, detergents, grease and oils

Maintains near new appearance for years

100% recyclable & environmentally friendly


Weather and stain resistant

 Material Specification Sheet



All our Coroplast® products are cut with our custom-made hand tools for a smooth, clean edge, so there’s no machined or toothed saw blade that can leave rough edges or burrs.  After 20 years, we've got our cutting and scoring process down to a science, so we can maintain our same or next business day shipping. We’ve also perfected our cutting and scoring process, so there’s no back folding, which can leave crease or crush marks.

We use only 4mm Coroplast® brand materials for their superior quality, richly colored sheets and sleek, easy-to-clean surface which will stay vibrant indefinitely.

Our 16 Color Options:


We particularly like the color combinations of pink and silver, as well as translucent and light blue.

 Translucent C&C guinea pig cage stacked above coroplast bins