Built a 4X6 last year for me and my son. Use 2X6 framing for deck w/ 1/2 plywood. Attached 4X4X10' legs using the stand elevators (about 80.00) but made it real stable and easy to attach legs. We then flipped it upright using 4 wheeler. Used 2- 2X4 (screwed in L shape) for each wall corner, then attached 2X4 around for roof and for cover material.