I should know this, but I don't
Can PT wood be used for raised beds? I was using non-treated wood I had on hand; naturally, it didn't last.
Can PT wood be used for raised beds? I was using non-treated wood I had on hand; naturally, it didn't last.
Hey, Whites!!! I'm a purist when it comes to what I allow to touch my soil. No PT for raised beds here, and no RR ties with creosote except for flower beds. If you want a wood that will last a long time, look at hemlock, or cedar. You can get even longer life out of it by staining it or painting with sealant. Then, line the inside of the bed with plastic. As other posters have mentioned, you can also use cinder blocks. Those should outlast both you and me. You might even look at using engineered deck boards to build your raised beds (the plastic decking with the wood grain "stamped" into it. You would need to use some structural stakes to keep the sides of the RB from bowing if you used these. 