I once used untreated plywood to make the sides of raised organic vegetable beds. I think they lated 2 years, and looked pretty ratty by the second year. I'm getting ready to start the outdoor enclosure for my Hermann's and would like to use untreated lumber- but I'd sure like it to last longer than 1-2 years.
If I paint untreated wood (2 x 4s, and plywood) with primer and 2 coats of outdoor paint, how long do you think it would last outside in hot, humid south Louisiana?
If I paint untreated wood (2 x 4s, and plywood) with primer and 2 coats of outdoor paint, how long do you think it would last outside in hot, humid south Louisiana?