I am looking to build 4 40 foot beams from 3 ply 2×12’s. They will be used on a 12″ sonotube foundation spaced every 10 foot. Does anyone have any illustrations on where/how to place the stacked pieces? I am starting my planning for a 30’x40′ house build on a pier and beam foundation.
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A structural engineer would be the one to approve the how. But I would get 20 footers and stagger the joints every 10 feet. That way all the joints are over a sonotube.
Yes this is kind of what I was thinking as well. I will get an engineer to finalize everything. I am just doing some preliminary research figuring things out to familiarize myself.
Thank you for your response.
Why do you need a 40 foot beam if your spans are. only 10 feet?
I wanted 1 solid beam to span the full 40 foot length. So yes, technically they are only 10 foot spans between sonotubes.