Hello I'm trying to make a bigger c&c cage for my piggies. they're currently in a 4x2. I would like make them a 6x3 so it be wider as well as longer, but I'm need help with the dimensions for the coroplast. I'm also wanting to add a stand and wanted to know how many grids I'd need sorry for all the questions im new to guinea pigs and want to give them a good life .Thank you