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I have a 4x6 header supporting 2 x 8 spanning 20' the header…

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I have a 4x6...

I have a 4x6 wood header supporting 2 x 8 spanning 20 ' the header is placed in the center so the header is supporting 10" on each side. there is a Colum in the center which I want to remove so the header will span 14' without support. If I install two 3/8 steel plates (one on each side) will that be enough to carry the weight. There is no load above

Submitted: 11 months ago.Category: Structural Engineering
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Answered in 18 minutes by:
9/19/2017
Structural Engineer: StructuralEng, Consultant replied 11 months ago
StructuralEng
StructuralEng, Consultant
Category: Structural Engineering
Satisfied Customers: 7,756
Experience: Structural Engineer
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Hello. I can help.

What is it supporting if there is no load above?

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Customer reply replied 11 months ago
no load above. the floor above is a living room open floor plan Just some furniture
Structural Engineer: StructuralEng, Consultant replied 11 months ago

If it's habitable living space then the building code requires a 40 psf live load

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Customer reply replied 11 months ago
will one 3/8 steel plate on each side accomplishe that?
Structural Engineer: StructuralEng, Consultant replied 11 months ago

Unfortunately, not. Even a 3/8" plate on each side will not do it. 5.5" is very shallow to span 14'. I will size the plate thickness you need.

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Structural Engineer: StructuralEng, Consultant replied 11 months ago

You would need a 7/8" x 5.5" plate on each side of the existing wood beam to make it work for a 14' span.

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Structural Engineer: StructuralEng, Consultant replied 10 months ago

Hello. Do you have any other questions for me on this topic? If you could rate my answer, I would appreciate it.

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