Both replies indicate that a deep beam would be needed. That sounds as if I cannot just sandwich the existing 4"x6" beams (which are each 10' long). Also, if I should to this, would I need a single 30' flitch plate on each side, or would flitch plates of say 6' over each of the two...
I have a 8' x 65' back porch with a shed roof of tounge-in-groove pine and asphalt shingles. It has a post every 10 feet supporting 4x6 beams. I'd like to join every 2nd and 3rd beam with a flitch plates sandwich, then eliminate those posts, and thereby create two 30' spans - for a better view...
