Hello. I can help. Can I get back to you in a couple hours?
I can size the beam for Gravity loading. You will need to also have the entire structure analyzed for wind. Do you want to clear span the 30' or so you want more posts with a smaller beam?
Ok. I will size he beam accordingly
In in about 10 minutes
3.125" x 10.5" pressure treated glulam 24F-V8.