[mrgins]

I'd be more inclined to use a microlam or a parellam and span the whole opening in one even tho your using a center support. Guess it all depends on the engineer's recommendations

 

[Daniel Holzman]

I had a difficult time following your post. I gather you want to remove the wall, then install a post? at the 9 foot point so you will cut the maximum span to 9 feet. Is this for aesthetic reasons? If not, maybe you should consider removing the entire wall, and spanning all 13 feet with no intermediate post. Your engineer will spec the beam, but it can certainly be spanned with the correct Glulam or perhaps a steel beam.

 

[Gary in WA]

I'm glad to hear you will get professional help on this, and the liability involved. The S.E. will spec the header, posts, floor blocking, post below right down to the footing size and depth, any steel strapping for tie-in to the existing walls, etc......The potential loads above can be a few thousand pounds, more or less....
Let us know what they say, and Welcome to the forum!

Gary

 

[mattmc]

I had a difficult time following your post. I gather you want to remove the wall, then install a post? at the 9 foot point so you will cut the maximum span to 9 feet. Is this for aesthetic reasons? If not, maybe you should consider removing the entire wall, and spanning all 13 feet with no intermediate post. Your engineer will spec the beam, but it can certainly be spanned with the correct Glulam or perhaps a steel beam.

The post between the 9 and 3 foot mark would be the start of a wall that would enclose a small section for a refrigerator and cabinet.