Can I span 19' 4' with a metal beam?

toniduoSeptember 19, 2011

I have a corrugated plastic patio cover that is built over 2x6 fir joists anchored to the house ledger and carried by a double 2x6 beam which is in turn supported by three 3x3 fir posts (posts are actually 3x3). The two outside posts are 19' 4" center to center and the beam cantilevers approximately four inches past each end post. Can I replace the wooden beam with a metal one and eliminate the middle post? If it is possible, what size beam do I need to use? Aluminum? Steel? There is no live load and we rarely get snow. I do not know what the dead load is, but it is not much as I can easily lift the existing beam easily.

Thank you for reporting this comment. Undo

Whoever is selling you the beam should have load and span tables.

    Bookmark   September 19, 2011 at 5:12PM
Sign Up to comment
More Discussions
Slate or stone tile on a raised deck?
Has anyone used slate or stone tile on a raised deck?...
Covered concrete walkway weeps water on surface
I have a concrete walkway along the house that is covered...
Ideas for front porch needed
Hello. We bought a house that was new construction....
Help finishing inside screened porch
Need suggestions. I don't know how to finish the top...
How bad is this- builder did not use stainless screws on ipe?
I have a mess on my hands and would appreciate any...
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™