I'm looking at 3/8 plywood for the main walls of my coop, but when comparing I see a code "Struct 1" for each. One is rated as yes and the other is no. When I looked it up, it said that it's about whether or not it's for building structures such as homes. They didn't mention coops. I want a lasting coop, but I'd also like to not pay for things unnecessary. So if this is integral to having a sound coop, I'm all for the extra cost, but if not, then I'd rather skip it. I don't have plans or a materials list, and for the moment am just winging it while I check prices for what I know we'll need, like lumber, hardware cloth, siding, and roofing. Hoping the builders in the group can provide guidance on this question. Thank you!!