I was just shopping for a breaker box and could not believe what I saw. Just when I thought I had seen it all, they come out with plastic breaker boxes. I cant stand plastic outlet boxes, and now breaker boxes. Besides being flammable, I can just see it now. I put the box in my shed and mice chew large holes in it. I have already seen what mice can do to metal boxes, and I once found an old fuse box that was so full of mouse nesting that it had actually started charring the nesting stuff inside, but the metal prevented a fire. I think it had gotten moisture in it and was arcing across the terminals. I know a guy who had a mouse short out an outlet in his garage when the mouse chewed thru the plastic box, and the romex in the wall was no longer NM cable, but a black, white, and ground wire. The mice had chewed off all the NM outer insulation, and in a few spots there was bare copper on the hot wires. Thank God they still make and sell metal breaker boxes. They are the same price too.
I suppose the plastic ones will be the new trend and will soon be available in designer colors !!!
Mark