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StructuralEng
StructuralEng, Consultant
Category: Structural Engineering
Satisfied Customers: 7000
Experience:  Structural Engineer
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I want to span 30 ft with an I beam to put a sliding wall

Customer Question

I want to span 30 ft with an I beam to put a sliding wall under it. Span will hold up 9 8x8 wood beams with 2x4 tounge & grove roof with a total area of 18x 32. A 12" tall I beam would be great fit, but have no idea of any of the other dimentions. It must not sag in middle being only supported by same size beam on each end & not so heavy as to make installation difficult. Thought bout using lighter beam & then welding plate across to box one side or even cross pattern. Any suggestions or recommendations would be greatly appreciated.
Submitted: 11 months ago.
Category: Structural Engineering
Expert:  StructuralEng replied 11 months ago.
Hello
Expert:  StructuralEng replied 11 months ago.
Is it supporting these 18' long beams on one side and nothing on the other?
Expert:  StructuralEng replied 11 months ago.
What is the city and state so I can look at snow loading?
Expert:  StructuralEng replied 11 months ago.
All beams will deflect (sag) even just under their own self weight. We design them to deflect an amount that is tolerable. What is the maximum deflection you can tolerate at mid span?
Expert:  StructuralEng replied 11 months ago.

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