I know this is technically not a woodshed issue, but I stack on wood racks using steel corner brackets and 2x4s. I was wondering if anyone has ever had stability issues. Also, even if you haven’t used racks, would you have advice on using stakes of some sort to stabilize the wood racks would help? Keep in mind the racks are 4’ high and 8’ long and at most 16-17 inches wide to accommodate splits for my insert. I didn’t have any problems last year, but this year had softer ground and had a set of three go down like dominoes. Thank you for your thoughts.