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StructuralEng, Consultant
Category: Structural Engineering
Satisfied Customers: 7155
Experience:  Structural Engineer
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What beam size will support 2,400 Lb. per LF.

Customer Question

What beam size will support 2,400 Lb. per LF.
Submitted: 1 year ago.
Category: Structural Engineering
Expert:  StructuralEng replied 1 year ago.

Hello. I can help

Expert:  StructuralEng replied 1 year ago.

Do you want a steel beam? What will it support so I can determine an acceptable deflection limit?

Customer: replied 1 year ago.
Used in a wall opening for roof support. 100 # ***** SF snow load recommended this area. (Northern Montana.) Roof area above this beam is 26' x 24'.
Customer: replied 1 year ago.
Other than for the sanctity of the beam, deflection is not critical. I believe 2-3 inches would be appropriate, based on other beam reactions. I would appreciate your input. Area below beam is open and will not have any interfering structure or other items. Also, bearing area on each end of the beam is 8" x 8".
Expert:  StructuralEng replied 1 year ago.

You can plan for a W18x65 beam (18" deep and 65 pounds per foot) if you can brace the beam at the quarter points against lateral torsional buckling. If you can, you will need W18x76. Steel type is ASTM A992 Gr. 50

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