I was wondering what you guys thought was the best lumber for outdoor use? I replaced my front outdoor stairs 19 years ago using white pine step for the treads and today all but the very bottom step is still perfect. Most of the risers need replacing but don't remember what type of wood I used. I'm not a fan of treated lumber because 5 years ago I recieved a playset for my son in kit form, meaning a pile of lumber and some screws, nuts and bolts. In less than one year the 4x4 corner posts had twisted and warped as did some of the decking, yet my front stairs still pretty good considering. So in fixing the front stairs now I wondered what type you all use for these projects and what success or failure you have before I go buy my lumber. Thanks for any comments you have!