So. I now need to "finish" the inside walls of my pole barn. Thinking plywood on bottom 8 foot, galvanized to ceiling. My question is this. I have 2x6 first on 30 inch centers. If I screw 1/2 inch plywood to them, will that be sturdy enough, or will the plywood warp over time? Do I need to install 2x4 stud walls first?


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