PlanningI have found that if I do the layout in SketchUp or a CAD program and send that to the supplier, I can cut down on a lot of head-scratching at the job site. On my drawing, I provide the layout I want to follow, show bearing points, and specify whether I want the joists to hang from the ridge or sit on top. The supplier can then do the sizing and provide a dimensioned drawing for the building official. One of my goals in this design phase is to end up with as many rafters of the same size...

-OR-