Hi! We are wanting to build a large brooding house for the chicks from hatched to 6 weeks. During that time I would like to have a removable tray to clean out the poop. My initial thought was a small gage chicken wire so the poop will fall through into the tray, therefor not disturbing the chickens every morning for cleaning. After some research I've realized metal wire is not good for the bottom of the cage. Any suggestions? I would really like something for the waste to fall through into the tray. Thanks!