hbh1; I used 1/2" osb boards and ripped 2x4's to 2"for the frame. Used old corrauated tin for roof (be sure use nails or wood screws with rudder gaskets to prevent leaks , learned the hard way. My base was bulit three feet high, all was painted before assleny, need another person to put together. Took three weeks to cut, paint, working on it after work. 5 hrs to put it togeher on site. It is very confortable for one person it may a little cramped with two adluts.