I figured it was your own house. That was why you asked, right? I'm not a PE either, but I would be surprised if that wasn't adequate. I used to do a lot of framing, and that was probably more than we would have done for a 9 foot span that was designed by our architects. You can probably get a PE to look at the calcs without too much trouble. If you are building the house yourself, the lumber yard may have someone from the mill that can help, or you can track one down on your own. It would be quicker than putting another post and footing into the building.

Man, at 22 feet you almost could have done it without even needing the beam if you had the right configuration of TJI's at 12" centers. I think we did that once for at least 20 feet, and it worked really well.

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Jim Robinson
New Mexico, USA