Hi all......I think I will be going to a raised bed garden next year. I'm tired of battling this NC clay soil. I will be building my own raised beds but I'm not sure how deep my soil should be. I will be growing most of the usual veggies. Would 8-10 inches of soil be enough or should I go deeper? Also, can I grow berries (blackberries, rasberries etc.) in a raised bed?

thanks......