This is one of the few times I had to buy new lumber instead of using recycled material. At these ties will be in contact with the ground and aluminum at the same time, they needed to be treated with a safe product that was not around a few years ago. First I cut all the 2x4s to length and then cut them in half. After airing out for a few hours I stacked them neatly in the workshop to slowly dry the rest of the way over the winter while the shop is closed. See you in the spring!