Is a 4x4x18' enough to support this span. 12'x13' room. Ridge beam supported each end with a 13' open span

by Bill   Last Updated August 06, 2018 23:21 PM

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Screened in room. Ridge beam recommendation?

Tags : roof structural

Answers 1

Depending on snow load, if any, “dead load” (composition of roof structure), species of wood, grade of beam, etc., I’d use a 4x8...minimum...for a 13’ span.

Lee Sam
Lee Sam
August 06, 2018 23:03 PM

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