We just put in some raised flower beds w treated lumber and I'm wondering if there is something I can coat the inside of the beds with before I put in the soil, that will help them last even longer? My husband suggested that rubberized paint like a truck bed liner. Besides being expensive, is there a reason this product will not work? I'm worried that it may not adhere to treated wood, or could peel ect.
We just stapled 6 mill poly to the inside of the walls. That keeps the dirt out of the timbers and the treatment out of the dirt.