new build isn't going very good. Working alone with these 12ft 4x4's isn't fun. Had one fall the other day and I tried to "catch" it, back went out, took out one of the 2x4's in floor frame. These 4x4's are hardwood and the drill's are breaking that I'm using for pilot holes, I've taken the 4x4's out and am using 4x6's that the neighbor gave me. They are only about 6ft so they are easier to handle. This frame is from an old ice fishing shanty and isn't the nicest piece i've seen. I'm trying to use recycled wood for everything but some of this frame isn't the best and I may have to buy something.