Ok. I've been working on a pallet coop and it's a disaster. I got extra pallets for spare wood, cut apart the pallets to maximize the wood I had and it's still not enough. Plus it's super ugly. I want to cry. I'm thinking if I redo the sides with plywood and paint it, the project could be saved. Is plywood ok to use for siding? I live in Oklahoma and we have really cold winters and really hot humid summers. Ideas??