I've been trying to figure out what I will use to catch the run off from Zoe's new cage (which I'm hopefully getting this weekend!!!). Now I know what I can use! Thanks BigT!!!! You and Chimbakka should go into business together...you both have such great ideas!!!
:No but I have made them that big for a water dragon enclosure. Sweater boxes nest inside each other. I cut one side off of two of them and two sides off one of them, I then nested them so that I had adequate overlap and siliconed them together. It's still holding up after 1 1/2 years.