What should the header size be? I was thinking two 2x12. One king and two jack studs on each side? Do I need to build a temp support while installing the new header?

  • Is the door going to be on the first or second story? 2-2x12's should be good for a header of 5' even on the first story.
    – ArchonOSX
    Commented Nov 25, 2017 at 19:09
  • First floor and thanks for the info it's a big help Commented Nov 26, 2017 at 13:15

1 Answer 1


The 2x12's are good. 2x10's are calculated to be enough. Double jack studs are good. And definitely provide temporary support. This information is available on Table # R502.5(2) P.

  • Paul, you might add the title of the document that the table came from e.g. International Building Code, Table R502.5(2)
    – ArchonOSX
    Commented Nov 27, 2017 at 9:59

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