I just finished a raised(elevated) bed garden box,6'x4'x12"deep,and used 4x4 pressured treated pine for the corner legs.It has checking in each leg and I'm wondering if that will continue,eventually making them unusuable for support.I not sure of the grade of pine or
if that makes a difference.I estimate the weight when filled with soil at around 1000lbs.thanks,Ron in Miami