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  1. #1
    Join Date
    Aug 2007
    Posts
    7,143

    Default Framing Question

    My neighbor, bless his heart, is long on ideas and short on cash and abilities. He is trying to build himself an art studio in the backyard, which is basically going to be a shed style structure.

    Rather than putting on a typical gable roof, he wants to do sort of a modified shed roof (single pitch to one side ). I don't know what the style is called, so I'll try to describe it.

    Basically the shed is 12' wide. He wants to do a single pitch across 8' of it. At the ridge he wants a vertical drop and then continue the roof with another pitch to the outside wall. If you hold your hands in the shape of a gable, now drop one hand down about 2", that is what he wants to do.

    I say it will significantly increase his costs to do this and have recommended simplicity, but I respect his wanting to not have this monolithic structure to look at, and to be honest, I don't want to look at some hacked together POS either.

    The cost of trusses is going to be prohibitive, so what would be a suitable framing solution? I am thinking a joist across the span, then installing a vertical at 8' to carry the main roof slope and then attach the shorter and lower slope to the side of the vertical. The roof is going to be tin over 1x4 and waffle boards, so weight will be minimal. Total span is 12', roof pitch 4/12.

    What would be the proper dimension for the joist and vertical piece. The top I'm figuring 2x4 with some structural webbing to carry the span.
    I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!

  2. #2
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,685

    Default Re: Framing Question

    If you have a rise of 4' over 12' span, the top of the ridge at 8' span will be 2'6" above the top plate.

    What's the length, or depth of the shed? knowing this will determine how to support the following and what size rafters to use.

    One way of framing with ridge, ledger and rafters:

    -At the 8' mark, frame a wall 2'6" high, including a 2x6 ridge, mounted at the far side of the top plate of this wall.
    -Install a 2x6 ledger across this wall on the side of the short rafters, 2' high.
    -Now you're ready to cut the rafters. The long rafters will hang on the ridge and the short rafters will hang on the ledger.


    Make sense? I drew a plan, let me see if I can snap a pix and send it to you.

  3. #3
    Join Date
    Aug 2007
    Posts
    7,143

    Default Re: Framing Question

    Building dimension is 12' wide X 20' long

    What I was thinking is using a 2x6 or 2x8 joist to span with a 2x4 vertical and rafter. Additional webbing would be installed to increase support of the rafter. The rafter would extend past the outside wall on one end and past the vertical wall on the other. The short section of roof would obviously start at the vertical member and overhang the outside wall.
    I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!

  4. #4
    Join Date
    Jan 2010
    Location
    Northern Virginia
    Posts
    1,193

    Default Re: Framing Question

    I think you're asking about a half-clerestory roof, like a factory roof where you'd want light in the center.

    It would be more efficient to do the whole roof as a single-plane shed, and add the clerestory windows across the high side.
    Casey
    Remove not the ancient landmark, which your fathers have set.

  5. #5
    Join Date
    Aug 2007
    Posts
    7,143

    Default Re: Framing Question

    Quote Originally Posted by Sombreuil_mongrel View Post
    It would be more efficient to do the whole roof as a single-plane shed, and add the clerestory windows across the high side.
    Casey
    That was my opinion as well and ultimately much cheaper and easier to build than the celery thingy you were talking about.

    Like I said, the kid is long on ideas, but short on cash and ability.
    I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!

  6. #6
    Join Date
    Sep 2009
    Location
    florida
    Posts
    598

    Default Re: Framing Question

    how about a small sketch Spruceeee...
    Gizmo

    Cut it 3 times & it's still to short.
    Inventor of the Miter Master Plus.

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