So I should be bringing my piggies home sometime next week! =) My problem is that I don't have any coroplast. I have my grids all ready. I built a 2x3 but realized I have enough in one box for a 2x4 with a roof so I'm planning on expanding it tomorrow. Do you know of anything that I can temporarily put down under the cage instead of coroplast until I can get some? I already have some fleece and plan on purchasing cage accessories soon..thanks so much! =)