Angled Floor Joists

Discussion in 'Builders' Talk' started by Dan1980, Feb 13, 2018.

  1. Dan1980

    Dan1980 New Member

    Hi folks

    Due to the fact that the extension that we are building isn't square to the existing house we need to put the floor joists in at an angle.

    The angle of the extension is about 80 degrees to the existing house.

    Can you get angled joist hangers that would suit this need or do we just twist 90 degree hangers, or is there a better solution all together?

    Cheers for any advice.

    Dan
     
  2. Jord86

    Jord86 Well-Known Member


    The best solution would be to cut pockets out of the wall and slot the joists in so they bear fully on one skin of wall. You can get angled 45degree hangers, try Simpson strong tie if all else fails.
     
  3. Dan1980

    Dan1980 New Member

    We can’t put into wall as there is a steel in the wall for the opening.

    I don’t think the 45 degree hangers will help as they are further from the 80 degree angle than a 90 degree hanger.

    Cheers

    Dan
     
  4. Pollowick

    Pollowick Well-Known Member

    What about getting some wedges cut - 10 degree maybe 300mm wide and full depth of the joist. If there is a timber running full length, fix the wedges in place with10 or 12 screws and put the hangers over that and the main timber behind.
     
  5. Isitreally

    Isitreally Well-Known Member

    Adjustable hangers


    itbs-installed-jpg-jpg.jpg
     
  6. Dan1980

    Dan1980 New Member

    Could you tell me where I can get these from isitreally?

    Cheers

    Dan
     
  7. nigel willson

    nigel willson Well-Known Member

  8. Isitreally

    Isitreally Well-Known Member

  9. chippie244

    chippie244 Well-Known Member

    You could get a joist hanger for wider wood.
     
  10. Dan1980

    Dan1980 New Member

    What size hanger would you suggest for an 8x2 joist so that it would work at around 80 degrees chippie?

    Cheers

    Dan
     
  11. chippie244

    chippie244 Well-Known Member

    One for a 3" joist should work, I presume that it is 10 deg off square not 80 degs?
     
  12. Dan1980

    Dan1980 New Member

    Yes 10 degrees off square. Thanks mate I might try that.
     

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