hi there Linda~ If you are worried about the arsenic in the treated wood .... you could line the bed with plastic liner of some sort.... I would like to have some proof that the treated boards would have enough poisons in them to warrant this kind of action .......... anyone know how much poisons are in treated wood and how much would be absorbed by peppers or other veggies to warrant a fear of using treated boards in raised beds????? Wouldn't the poisons over time become depleted???? Million $$$$ questions......anyone have the answers??? You have Raised (no pun intended) my curiousity....... we don't need deadly peppers being grown!! just hot hot hot~ Debra~