I'm building a 2 x 3 grid for my hedgehog's CC cage. I have all the grids set up and ready to go, I just need the coroplast. All over the internet, I see that you can buy it from Lowes and Home Depot etc., but those all include 10 36 x 48 sheets, for about $200! I only need one!!
Most any sign shop will have tons in stock or can order you just one of whatever you want. There are many grades, colors, and thicknesses available.
call the commercial desk and ask for one sheet !!!! those folks at that desk in either the HoDepot or Lowe's are helpful and they will find you something that will work ....