I don't know if any of those questions were towards me, but I can answer them, anyway
I don't know why you'd want to put the tiles over the coroplast. Coroplast itself (from my understanding) is easy-to-clean as it is.
If you are looking to make it more stable, wood is much sturdier. You can go to home depot and tell them what size sheet of wood you need, and they can cut it for you (no tool involved on your part!)
Then, you buy enough stick-on vinyl tiles to cover the wood. Those tiles are so easy-to-install, it's not funny. You peel off the back and stick it onto the wood like a giant, 12" sticker.
The hardest part is lining them up (and that was pretty easy, too!
But, if the vinyl tiles do not come out to the same size as the cage, you may need to cut the vinyl to size. We used a razorblade and just cut it along a straight edge (we used the sides of the wood as a straight edge). You could probably do the same with scissors.
Example of the tiles not fitting, you were mentioning making a 4x3x3 pen in another thread, correct? Then, you would need enough vinyl tile to cover a 4x3 NIC grid area (roughly 56"x42"). I've only found vinyl stick-on tiles in 12" square sizes. You would need to cut some of the tiles to size. If the cage is 56" long (4 grids) and you were using 12" tiles, four tiles would only go 48" across the bottom. You would need to cut about 4" off three tiles to get them to cover the whole bottom length-wise.
I hope this makes sense. If not, I can try and draw a diagram that might be a little easier to understand.
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I hope I didn't confused you too much!
I may have just confused myself! lol