Just tie a 3/8in rope w 2 angled posts on both sides of row . Angle the posts about 70° .. lol. Then stack wood on both sides holding the posts (u can use tree branches cut to length) or 2x3 or 4. . Stack on slats to keep off gnd. It's easy and u dont have to brace the ends just stack it well and itle sit til shes dry.. Easy and holds alot of wood for the space used. I have a pic but it's too darn large to upload.. ooop nevermind there it went. Lol. Good luck happy stackin..
2 pallets on the ground, try to level with rocks or bricks, then an upright pallet with a 24 inch angled 2x4 to brace attached to each pallet. Keep the row going like that.