Hi! I'm going to build an attic floor in my garage, and it has a span of 6 meters. There's currently a post in the middle supporting the roof, and now I want to remove the post in the garage section and plan to place a beam that will also support the floor! I'm thinking of using 3 2" * 9" beams, screwed together, possibly glued and screwed. Is it possible that it would be able to support the roof post and the floor? There are no real roof trusses currently, but at the ridge, there's an 8" * 8" with 2" * 8" laying out to the walls! And from the wall to the central beam, I'm planning 2" * 6" which will be 3 meters on each side. Is it sufficient to use joist hangers against the wall and the beam? The garage is 6 * 6 meters! Best regards, Hebbe
Not an expert, but it sounds very weak to my ears. If we disregard the roof with its pole, I guess you would need a glulam beam that is 400 - 500 mm high for a 6m span, alternatively a steel beam.
Then comes the load from the roof's column, which may double the load (which does not mean a doubly strong beam).
I think you should call in a structural engineer to take a look at that. Also, the beam's attachment points in the walls become critical, you get a point load there of 1.5 - maybe 4 tons at each attachment. The wall probably can't handle that, perhaps not the foundation either.
Then comes the load from the roof's column, which may double the load (which does not mean a doubly strong beam).
I think you should call in a structural engineer to take a look at that. Also, the beam's attachment points in the walls become critical, you get a point load there of 1.5 - maybe 4 tons at each attachment. The wall probably can't handle that, perhaps not the foundation either.
