What we should all start doing is building 2 story additons onto houses. Use 1"x3" for the posts to hold everything up. Substitute 1"x1" for the studs, only run em thru the table saw first and make 2 out of each of that so the cost of materials goes way down. Floorjoist needs to be a little stronger so we'll use 1" x 4" for those. 3/8" plywood for the floor decking. Nails set at 16" intervals, use them gal 1-1/4" finish nails they are cheaper. Doors only need one hinge in the middle of the frame, why use 3? . Did I forget the stairs? Nail several orange crates together in a stair riser pattern. Cover it all with more of that 3/8" ply material so you can't tell from looking at it. Proudly tell the homeowner "who needs to call one of them expensive carpenters. Any fool can do this stuff".
