Beam Span to Support Deck Floor

by Dan
(Allentown, PA)

I am adding a 12x12 Hip roof with 6" overhang with a 4/12 pitch over a 12x12 deck. I live in eastern Pa so snow load needs to considered.

I want to span from the house to the corner post 12'. What size lumber and what thickness do I require? ie. Triple 2x10??????etc

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Apr 29, 2011
by: Dan

Thank you for directing me to the calculator.
I just was not sure if it applied to a roof.

Apr 29, 2011
Try this beam calculator as a start
by: Editor-Rich Bergman

A great place to start is to try using the new joist and beam calculators on the site.

Just click on the Calculators on the horizontal nav bar and select the beam calculator. This will give you a great starting point which you can verify locally before going ahead with your building project.

Here is the beam calculator.

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