What do you guys think? The existing deck beams are 50 yrs old,not treated and rotting out. 2x12s with a 5 ft cantilever. Im considering going in and replacing the beams exactly as is with treated wood. I don't like that much of a cantilever but but what has been there still seems very strong except for the fact that its rotting away. As u can see someone has done some patch work.