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StructuralEng, Consultant
Category: Structural Engineering
Satisfied Customers: 7187
Experience:  Structural Engineer
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I am wanting a clear span room of 34'. The only load

Customer Question

I am wanting a clear span for a room of 34'. The only load will be the roof. Which is 1/2 plywood and asphalt singles. The wall are 12' each way from the center of the beam. The roof pitch is 3.5 X 12.
Submitted: 2 years ago.
Category: Structural Engineering
Expert:  StructuralEng replied 2 years ago.
Hello, I'll be happy to assist you. What is the city and state so I can look at snow loading?
Do you want engineered lumber or steel?
Customer: replied 2 years ago.
Excelsior Springs, Missouri I was wanting to use a tube beam
Expert:  StructuralEng replied 2 years ago.
HSS 16x8x3/8 will work for strength an limit deflection to span/360.
Customer: replied 2 years ago.
I am wanting to keep the beam as short on height as possible...What would happen if we use a heavier beam.... 1/2" 3/4"
Was hoping for around 10" in height
Customer: replied 2 years ago.
A 5" width would work well also but appears that I may have to say with a 6" ...To meet my height requirement
Expert:  StructuralEng replied 2 years ago.
10" in depth will not span the 34' that you want.
Customer: replied 2 years ago.
Sorry I have been out of town.. If the thickness of the steel was increase....Can the height of the beam be smaller .....
Expert:  StructuralEng replied 2 years ago.
I can get a HSS down to 12", but it's very wide and thick. I can also get an I beam to work. I would also design a custom shape to work.
Customer: replied 2 years ago.
Whatever is the best way to get the height as short as possible...I beam, tube beam, custom beam, or wood beam.( I was told wood would be very tall, 16 ". A custom beam is very doable. We have a shop) ....It makes no difference....The width could be a problem at some point....I will wait for your reply. Looking for the best way to support the opening with the height being as compact as possible Thanks
Expert:  StructuralEng replied 2 years ago.
Do you need 10" or even more shallow. Wood would be much greater than 16". I can make a 10" I beam work or a custom 8" beam. The custom 8" beam would be an additional service offer and would include the proportions and weld requirements.
Customer: replied 2 years ago.
paid 34.00 Is that not covered
Expert:  StructuralEng replied 2 years ago.
Not to design a custom section. I can size the W10 I beam as this question, but custom beam calculations would be an additional service

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