We had them tie into the existing roof peak where there had been a cover porch in the past. It about doubled her front porch area.
She also has an outside light and we put solar lights along the concrete sidewalk....its really nice now that its getting darker.
If I remember the dimensions are 10'x6' and it has a complete railing and closed gable end. We still need to stain it before winter (going with a cedar stain/sealer).