So I want to start thinking about my next build. I have the idea down, and I want to get some wood. My grandpa has a pile of ash from a palette he disected, and he said he pulled all of the nails, but I was just wondering if you guys have any ideas on how to make sure there is no metal left inside the wood. I would like the keep this build cheaper than my first as I have the tools now, so free ash is a pretty good deal. Cheers!