I have a covered patio that extends 10' from the house towards the yard/pool and has a width of 30-33'. The covered patio seems to be part of the roof, I even have access from the attic as we ran some speaker wire a few years ago to the patio.
It is currently supported by (4) 4x4 wood posts which are rotting away. The posts are holding what appears to be (2) side by side 2x6 pieces of wood acting as the beam and span the 30-33' patio.
I would like to replace the (4) existing wood posts and beams with just (2) posts (I'm assuming steel) as far to the edges of the beam as possible. My concerns are due to the span and weight. I want to avoid any sagging of the beam in the middle.
How can this be achieved?