I used pressure treated pine for the wooden ladder stands I have made. Some of these have been out since the early 1980's. Still in safe shape. I have them chained to the tree using a turn buckle. I loosen them after each season and inspect them before each season. Ladder is 16' - 2x4. Ladder rungs and frame lumber are 2x4's. Seat is 14' off the ground. Seat and foot platforms are pressure treated 3/4" deck board. I used SS screws to put them together. Until the pressure treat dries out, these are heavier than heck !! The only issues I have had has been the occasional loose steps and framing as the wood dries, and dilapidated platforms.

As of late, because of the weight issue of the wooden ladder stand design I used, and the fact that I am not as strong as I was 15-20 years ago, I have switched to HD 15'-16' steel ladder stands. I inspect them prior to every season and usually repaint every 3rd. year.